Akashic

county

Summit County, CO

Contests in this Place (92 available)

President37 · 1880–2024 · 3 mapped

▦ precinct · ▥ counties · ▢ no spatial detail

President margin by year

Place winner margin

1880–2024 · D minus R

Full record · 1880 → 2024

2024

Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab

The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1880–2024.

People and households

Who lives here

Exact values for this place, its state, and the United States.

Race · ethnicity · ancestry

Communities and origins

German14.5%17.9%12.5%

English10.9%12.6%9.5%

Irish7.7%11.2%9.4%

Swedish2.9%——

American2.8%3.5%5.3%

Italian2.7%4.9%4.8%

Polish2.2%2.1%2.2%

Scottish2.2%2.5%1.3%

Mexican9.4%15.8%11.3%

Nicaraguan2.3%——

Puerto Rican1.2%0.7%1.8%

Cuban1.0%0.3%0.7%

Spanish0.7%1.2%—

Honduran0.6%—0.3%

Colombian0.6%0.3%0.4%

Salvadoran0.2%0.3%0.7%

Asian Indian0.8%0.6%1.4%

Japanese0.3%—0.2%

Thai0.3%——

Chinese0.2%0.6%1.3%

Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.

Age and life stage

Measure	Summit County	Colorado	United States
Median age	39.5	37.9	39.1
Age 18–24	6.1%	9.2%	9.2%
Age 65 and older	15.7%	15.5%	17.2%

Household economy

Measure	Summit County	Colorado	United States
Median household income	$109,773	$95,470	$84,427
Poverty rate	7.7%	9.5%	12.5%
Bachelor's degree or higher (25+)	55.0%	45.5%	35.6%

Housing and tenure

Measure	Summit County	Colorado	United States
Owner-occupied homes	72.1%	66.2%	65.2%
Renter-occupied homes	27.9%	33.8%	34.8%
Median home value	$939,900	$539,400	$332,700
Median gross rent (monthly)	$1,928	$1,761	$1,413
Renters paying 30%+ of income	51.9%	52.9%	51.1%
Vacant housing units	61.1%	8.3%	10.1%

Getting to work

Measure	Summit County	Colorado	United States
Mean commute	20.8 min	25.2 min	26.4 min
Commutes 60 minutes or more	4.3%	6.8%	8.6%
Drives alone to work	55.2%	65.1%	68.8%
Takes public transit	4.0%	1.6%	3.2%
Works from home	23.7%	21.0%	15.1%

Languages at home

Measure	Summit County	Colorado	United States
Speaks a non-English language at home	9.8%	16.2%	22.3%
Spanish	8.4%	11.1%	13.6%

Religious landscape

Measure	Summit County	Colorado	United States
Catholic	18.8%	15.1%	18.6%
Evangelical Protestant	7.7%	11.7%	16.5%
Unclaimed / not counted	68.7%	64.7%	51.5%

Origins and service

Measure	Summit County	Colorado	United States
Foreign-born residents	8.5%	9.8%	14.1%
Naturalized citizens	2.2%	4.7%	7.4%
Not U.S. citizens	6.4%	5.2%	6.8%
Veterans (18+)	6.0%	7.5%	6.2%
Income inequality (Gini)	0.436	0.459	0.483

American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations · American Community Survey 2024 — housing and tenure (B25003, B25002, B25077, B25064, B25070), commuting (B08013, B08303, B08301), origins and service (B05002, B21001, B19083).

President results by year

2024 turnout 73.0% of 24,411 citizens 18+

HarrisDemocratic67.0%11,762TrumpRepublican29.9%5,244KennedyIndependent1.3%234

D+37.2

Lead: 6,518
Total: 17,545
vs nation: D+38.6
Turnout: 73.0%

BidenDemocratic68.3%12,620TrumpRepublican28.8%5,319JorgensenLibertarian1.9%353

D+39.5

Lead: 7,301
Total: 18,465
vs nation: D+35.1
Turnout: 79.6%

ClintonDemocratic59.1%9,557TrumpRepublican31.5%5,100JohnsonLibertarian6.2%1,000

D+27.6

Lead: 4,457
Total: 16,174
vs nation: D+25.5
Turnout: 75.5%

ObamaDemocratic61.0%9,347RomneyRepublican36.4%5,571OtherAll other candidates2.6%394

D+24.7

Lead: 3,776
Total: 15,312
vs nation: D+20.8
Turnout: —

ObamaDemocratic65.8%9,802McCainRepublican32.8%4,883OtherAll other candidates1.4%214

D+33.0

Lead: 4,919
Total: 14,899
vs nation: D+25.7
Turnout: —

KerryDemocratic59.3%8,144BushRepublican39.1%5,370OtherAll other candidates1.6%221

D+20.2

Lead: 2,774
Total: 13,735
vs nation: D+22.7
Turnout: —

GoreDemocratic47.9%5,304BushRepublican40.6%4,497NaderGreen10.2%1,131

D+7.3

Lead: 807
Total: 11,068
vs nation: D+6.8
Turnout: —

ClintonDemocratic47.2%3,970DoleRepublican38.7%3,261PerotReform9.8%823

D+8.4

Lead: 709
Total: 8,419
vs nation: R+0.1
Turnout: —

Key facts

2024 presidential margin: D+37.2MIT Election Lab
Population: 31,0172024 5-year
Population density: 51 / sq mi2024 5-year · TIGER/Line
Land area: 608 sq miTIGER/Line
Median household income: $109,7732024 5-year
White (non-Hispanic): 74.5%2024 5-year
Black: 0.4%2024 5-year
Hispanic / Latino: 17.2%2024 5-year
Peak Democratic margin: D+95.4 in 1896MIT Election Lab
Peak Republican margin: R+33.9 in 1984MIT Election Lab
Most similar: Routt County, CO · twin score 96.4

Participation

Turnout and midterm durability

Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.

2004–20248 cycles · 5 audited

2024 turnout: 73.0%17,818 participants ÷ 24,411 CVAP
2020→2022 drop-off: +20.2 ptsPresidential-dependent
Drop-off vs state: -0.2 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026: 52.8%–56.4%Recent-cycle and two-cycle persistence scenarios; not a forecast

Participation by cycle

Presidential Midterm Derived, pre-2016

62.6%

59.4%

Select a presidential cycle to show it on the map and results ledger above.

Cycle	Participants	CVAP	Turnout	Series	Quality
	17,818	24,411 ± 505	73.0%	Audited	A/A
2022Mid	14,567	24,526 ± 569	59.4%	Audited	C/A
	18,983	23,849 ± 485	79.6%	Audited	A/A
2018Mid	14,652	23,393 ± 572	62.6%	Audited	A/A
	16,876	22,341 ± 556	75.5%	Audited	A/A
	15,312	20,542	74.5%	Derived	—
	14,899	18,747	79.5%	Derived	—
	13,735	16,952 extrapolated	81.0%	Derived	—

Sources and methods

Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.

2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.

Interactive election map

One map. Every available contest.

The map and local result cover Summit County only. The complete contest result is shown below for comparison.

YearOfficeParty / contestMap detailShowing

Summit County result

0 precinct units · 0 candidate votes

Michael Bennet0—

Phil Weiser0—

Governor contest result

Loading the complete contest result…

Explore precinct resultsSearch, sort, compare years, or export CSV · 38 precincts

Precinct data

Results by precinct

38 precincts · 17,545 votes

Election

Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.

Summit County precinct-level presidential election results for 2024

Precinct -20813590042081359004	986	321	36	1,343	73.4%	23.9%	D+49.5
Precinct -20813590052081359005	844	420	35	1,299	65.0%	32.3%	D+32.6
Precinct -20813590022081359002	836	386	34	1,256	66.6%	30.7%	D+35.8
Precinct -20813590202081359020	824	328	51	1,203	68.5%	27.3%	D+41.2
Precinct -20813590132081359013	697	375	31	1,103	63.2%	34.0%	D+29.2
Precinct -20813590012081359001	667	328	34	1,029	64.8%	31.9%	D+32.9
Precinct -20813590092081359009	645	352	24	1,021	63.2%	34.5%	D+28.7
Precinct -20813590172081359017	713	267	30	1,010	70.6%	26.4%	D+44.2
Precinct -20813590192081359019	674	253	32	959	70.3%	26.4%	D+43.9
Precinct -20813590072081359007	576	269	25	870	66.2%	30.9%	D+35.3
Precinct -20813590152081359015	563	212	15	790	71.3%	26.8%	D+44.4
Precinct -20813590182081359018	537	222	21	780	68.8%	28.5%	D+40.4
Precinct -20813590162081359016	528	200	32	760	69.5%	26.3%	D+43.2
Precinct -20813590102081359010	460	259	24	743	61.9%	34.9%	D+27.1
Precinct -20813590112081359011	424	225	23	672	63.1%	33.5%	D+29.6
Precinct -20813590062081359006	447	173	22	642	69.6%	26.9%	D+42.7
Precinct -20813590032081359003	419	201	15	635	66.0%	31.7%	D+34.3
Precinct -20813590142081359014	447	141	27	615	72.7%	22.9%	D+49.8
Precinct -20813590082081359008	298	140	20	458	65.1%	30.6%	D+34.5
Precinct -20813590122081359012	177	172	8	357	49.6%	48.2%	D+1.4
Summit 008_0811759000	0	0	0	0	—	—	No votes
Summit 108_0811759001	0	0	0	0	—	—	No votes
Summit 1008_0811759010	0	0	0	0	—	—	No votes
Summit 1108_0811759011	0	0	0	0	—	—	No votes
Summit 1208_0811759012	0	0	0	0	—	—	No votes
Summit 1308_0811759013	0	0	0	0	—	—	No votes
Summit 1408_0811759014	0	0	0	0	—	—	No votes
Summit 1508_0811759015	0	0	0	0	—	—	No votes
Summit 1608_0811759016	0	0	0	0	—	—	No votes
Summit 1708_0811759017	0	0	0	0	—	—	No votes
Summit 208_0811759002	0	0	0	0	—	—	No votes
Summit 308_0811759003	0	0	0	0	—	—	No votes
Summit 408_0811759004	0	0	0	0	—	—	No votes
Summit 508_0811759005	0	0	0	0	—	—	No votes
Summit 608_0811759006	0	0	0	0	—	—	No votes
Summit 708_0811759007	0	0	0	0	—	—	No votes
Summit 808_0811759008	0	0	0	0	—	—	No votes
Summit 908_0811759009	0	0	0	0	—	—	No votes

presidential history

Party record book

Summit County, CO · the strongest Democratic and Republican presidential performances recorded here, measured three ways.

1892–2024 (partial returns from 1880) · 37 presidential cycles · 37 with a vote-share denominator · 34 with a national benchmark

Largest share of the presidential candidate vote cast here.

Democratic

William J. Bryan1896

97.6%

1,243 votes · D+95.4

Runner-up · Woodrow Wilson, 1916 · 70.3%

Republican

Ronald Reagan1984

66.1%

3,253 votes · R+33.9

Runner-up · Dwight D. Eisenhower, 1956 · 64.6%

Most votes

Largest number of votes cast for the party’s presidential nominee here.

Democratic

Joe Biden2020

12,620votes

68.3% of the vote · D+39.5

Runner-up · Kamala Harris, 2024 · 11,762 votes

Republican

Mitt Romney2012

5,571votes

36.4% of the vote · D+24.7

Runner-up · George W. Bush, 2004 · 5,370 votes

Best relative to the U.S.

This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.

Democratic

William J. Bryan1896

+101.5pts D vs U.S.

Place D+95.4 · U.S. R+6.1

Runner-up · William J. Bryan, 1900 · +49.1 pts

Republican

Benjamin Harrison1892

+27.3pts R vs U.S.

Place R+25.6 · U.S. D+1.7 · a third-party candidate carried the Place

Runner-up · Gerald Ford, 1976 · +25.6 pts

current representation

Current officeholders

DMichael BennetU.S. Senate-0.24

DJohn HickenlooperU.S. Senate-0.30

DJoe NeguseU.S. House · CO-02-0.43

DDylan RobertsState Senate · 8

DJulie McCluskieState House · 13

Seats representing Summit County, CO. A county elects none of these itself — they are the members for the 1 congressional, 1 state senate and 1 state house districts it falls inside, so parts of the county are represented by different members.

U.S. House elections · 3 House

Senate and governor results are in the Office selector at the top of this page.

U.S. House

Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Source · Akashic actual-race rollup from certified returns, House; geographic aggregation.
Year	Vote lead	Democratic	Republican	Total
2024	D	68.7%11,284	31.3%5,145	16,429
2020	D	68.3%11,677	31.7%5,430	17,107
2018	D	68.5%8,835	31.5%4,068	12,903

voter registration

Registered voters

By party of registration, over time

Party registration · 2024D+12.0

Presidential vote · 2024D+37.2

Registration leans Democratic; the presidential vote runs 25 points more Democratic than the rolls.

DemocraticRepublicanUnaffiliatedOther parties

Voter registration in Summit County, CO
Year	Total registered	Democratic	Republican	Unaffiliated	Other
2016	26,984	8,099	6,078	12,197	610
2018	27,670	8,190	5,740	13,133	607
2020	25,849	7,737	4,859	12,697	556
2022	25,948	7,442	4,264	13,693	549
2024	25,918	7,020	3,905	14,354	639

domestic migration

Who moves in and out

Net migration over time, and who arrivals are — where they came from and what those places vote

−448 net domestic migration · 2025

20112025

Net −2,080 over 2011–2025 · gain loss

Arrivals reported $134,350 in average income, against $138,951 for residents who stayed — 3% lower. (IRS SOI, 2022–23)

The places arrivals came from lean D+27.9 on average — 9.2 points more Republican-leaning than Summit County, CO itself (D+37.2).

Where arrivals came from lean of each source

Denver County, CO183D+56.1
Jefferson County, CO93D+19.5
Boulder County, CO50D+55.7
Eagle County, CO42D+24.4
Arapahoe County, CO41D+20.1
Douglas County, CO35R+7.0

Where departures went households, 2022–23

Denver County, CO161
Jefferson County, CO122
Arapahoe County, CO66
Grand County, CO58
Park County, CO51
Boulder County, CO41

Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.

Domestic migration in Summit County, CO in Summit County, CO: net domestic migration by year
Year	Net domestic migration
2011	−465
2012	−125
2013	+173
2014	+274
2015	+395
2016	+169
2017	−40
2018	−338
2019	−105
2021	−198
2022	−625
2023	−426
2024	−321
2025	−448

Summit County's economy revolves around ski resorts and outdoor tourism, drawing a highly educated, transient workforce that has pushed its presidential margins well above the state's already-blue average — 37 points Democratic in 2024.

Across the recorded series it reached a Democratic high of 95.4 points in 1896 and a Republican high of 33.9 points in 1984. Between 2020 and 2024 the county moved 2.4 points toward the Republican candidate; the 2024 margin was 37.2 points.

A population of 31,017, a 75% non-Hispanic-white share, and a median household income of $109,773 describe the county. The county's voting pattern over the last decade is most similar to that of Routt County and Eagle County.

Political twins — counties

The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Routt County

Colorado

96.4twin score

12-yr trend2020–2024 trajectorycollege share≠ Polish ancestry

Eagle County

Colorado

95.9twin score

2016–2024 trajectory12-yr trend≠ Swedish ancestry

Blaine County

Idaho

95.1twin score

2016–2024 trajectory12-yr trend≠ median age

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

Browse places by community — income, education, race & ethnicity, language — all community cuts →

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

Summit County, Colorado. Akashic. https://akashic.app/county/08117/. Accessed May 20, 2026. License: CC BY 4.0.

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Cities & towns in Summit County

Colorado at the ballot boxAll elections →

Presidentcounty detail2024 US Senatestatewide2022 Governorstate + county2022 US Houseall districts2024

Frequently asked questions

How did Summit County, Colorado vote in 2024?

In 2024, Summit County, Colorado voted Democratic by 37.2 points (D+37.2), carried by the Democratic candidate. Out of 17,545 votes cast, 11,762 went Democratic and 5,244 went Republican.

When did Summit County, Colorado last vote Republican?

The most recent presidential election in which Summit County, Colorado voted Republican was 1988.

How many people live in Summit County, Colorado?

Summit County, Colorado has a population of 31,017 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Summit County, Colorado?

Median household income in Summit County, Colorado is $109,773 — above the national median of $80,734. The Colorado state median is $95,470.

What is the political history of Summit County, Colorado?

Akashic tracks 38 presidential elections in Summit County, Colorado from 1876 to 2024. Of those, 21 went Democratic and 15 went Republican.

Akashic

county

Summit County, CO

Contests in this Place (92 available)

President37 · 1880–2024 · 3 mapped

▦ precinct · ▥ counties · ▢ no spatial detail

President margin by year

Place winner margin

1880–2024 · D minus R

Full record · 1880 → 2024

2024

Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab

The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1880–2024.

People and households

Who lives here

Exact values for this place, its state, and the United States.

Race · ethnicity · ancestry

Communities and origins

German14.5%17.9%12.5%

English10.9%12.6%9.5%

Irish7.7%11.2%9.4%

Swedish2.9%——

American2.8%3.5%5.3%

Italian2.7%4.9%4.8%

Polish2.2%2.1%2.2%

Scottish2.2%2.5%1.3%

Mexican9.4%15.8%11.3%

Nicaraguan2.3%——

Puerto Rican1.2%0.7%1.8%

Cuban1.0%0.3%0.7%

Spanish0.7%1.2%—

Honduran0.6%—0.3%

Colombian0.6%0.3%0.4%

Salvadoran0.2%0.3%0.7%

Asian Indian0.8%0.6%1.4%

Japanese0.3%—0.2%

Thai0.3%——

Chinese0.2%0.6%1.3%

Age and life stage

Measure	Summit County	Colorado	United States
Median age	39.5	37.9	39.1
Age 18–24	6.1%	9.2%	9.2%
Age 65 and older	15.7%	15.5%	17.2%

Household economy

Measure	Summit County	Colorado	United States
Median household income	$109,773	$95,470	$84,427
Poverty rate	7.7%	9.5%	12.5%
Bachelor's degree or higher (25+)	55.0%	45.5%	35.6%

Housing and tenure

Measure	Summit County	Colorado	United States
Owner-occupied homes	72.1%	66.2%	65.2%
Renter-occupied homes	27.9%	33.8%	34.8%
Median home value	$939,900	$539,400	$332,700
Median gross rent (monthly)	$1,928	$1,761	$1,413
Renters paying 30%+ of income	51.9%	52.9%	51.1%
Vacant housing units	61.1%	8.3%	10.1%

Getting to work

Measure	Summit County	Colorado	United States
Mean commute	20.8 min	25.2 min	26.4 min
Commutes 60 minutes or more	4.3%	6.8%	8.6%
Drives alone to work	55.2%	65.1%	68.8%
Takes public transit	4.0%	1.6%	3.2%
Works from home	23.7%	21.0%	15.1%

Languages at home

Measure	Summit County	Colorado	United States
Speaks a non-English language at home	9.8%	16.2%	22.3%
Spanish	8.4%	11.1%	13.6%

Religious landscape

Measure	Summit County	Colorado	United States
Catholic	18.8%	15.1%	18.6%
Evangelical Protestant	7.7%	11.7%	16.5%
Unclaimed / not counted	68.7%	64.7%	51.5%

Origins and service

Measure	Summit County	Colorado	United States
Foreign-born residents	8.5%	9.8%	14.1%
Naturalized citizens	2.2%	4.7%	7.4%
Not U.S. citizens	6.4%	5.2%	6.8%
Veterans (18+)	6.0%	7.5%	6.2%
Income inequality (Gini)	0.436	0.459	0.483

President results by year

2024 turnout 73.0% of 24,411 citizens 18+

HarrisDemocratic67.0%11,762TrumpRepublican29.9%5,244KennedyIndependent1.3%234

D+37.2

Lead: 6,518
Total: 17,545
vs nation: D+38.6
Turnout: 73.0%

BidenDemocratic68.3%12,620TrumpRepublican28.8%5,319JorgensenLibertarian1.9%353

D+39.5

Lead: 7,301
Total: 18,465
vs nation: D+35.1
Turnout: 79.6%

ClintonDemocratic59.1%9,557TrumpRepublican31.5%5,100JohnsonLibertarian6.2%1,000

D+27.6

Lead: 4,457
Total: 16,174
vs nation: D+25.5
Turnout: 75.5%

ObamaDemocratic61.0%9,347RomneyRepublican36.4%5,571OtherAll other candidates2.6%394

D+24.7

Lead: 3,776
Total: 15,312
vs nation: D+20.8
Turnout: —

ObamaDemocratic65.8%9,802McCainRepublican32.8%4,883OtherAll other candidates1.4%214

D+33.0

Lead: 4,919
Total: 14,899
vs nation: D+25.7
Turnout: —

KerryDemocratic59.3%8,144BushRepublican39.1%5,370OtherAll other candidates1.6%221

D+20.2

Lead: 2,774
Total: 13,735
vs nation: D+22.7
Turnout: —

GoreDemocratic47.9%5,304BushRepublican40.6%4,497NaderGreen10.2%1,131

D+7.3

Lead: 807
Total: 11,068
vs nation: D+6.8
Turnout: —

ClintonDemocratic47.2%3,970DoleRepublican38.7%3,261PerotReform9.8%823

D+8.4

Lead: 709
Total: 8,419
vs nation: R+0.1
Turnout: —

Key facts

2024 presidential margin: D+37.2MIT Election Lab
Population: 31,0172024 5-year
Population density: 51 / sq mi2024 5-year · TIGER/Line
Land area: 608 sq miTIGER/Line
Median household income: $109,7732024 5-year
White (non-Hispanic): 74.5%2024 5-year
Black: 0.4%2024 5-year
Hispanic / Latino: 17.2%2024 5-year
Peak Democratic margin: D+95.4 in 1896MIT Election Lab
Peak Republican margin: R+33.9 in 1984MIT Election Lab
Most similar: Routt County, CO · twin score 96.4

Participation

Turnout and midterm durability

2004–20248 cycles · 5 audited

2024 turnout: 73.0%17,818 participants ÷ 24,411 CVAP
2020→2022 drop-off: +20.2 ptsPresidential-dependent
Drop-off vs state: -0.2 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026: 52.8%–56.4%Recent-cycle and two-cycle persistence scenarios; not a forecast

Participation by cycle

Presidential Midterm Derived, pre-2016

62.6%

59.4%

Select a presidential cycle to show it on the map and results ledger above.

Cycle	Participants	CVAP	Turnout	Series	Quality
	17,818	24,411 ± 505	73.0%	Audited	A/A
2022Mid	14,567	24,526 ± 569	59.4%	Audited	C/A
	18,983	23,849 ± 485	79.6%	Audited	A/A
2018Mid	14,652	23,393 ± 572	62.6%	Audited	A/A
	16,876	22,341 ± 556	75.5%	Audited	A/A
	15,312	20,542	74.5%	Derived	—
	14,899	18,747	79.5%	Derived	—
	13,735	16,952 extrapolated	81.0%	Derived	—

Sources and methods

2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.

Interactive election map

One map. Every available contest.

The map and local result cover Summit County only. The complete contest result is shown below for comparison.

YearOfficeParty / contestMap detailShowing

Summit County result

0 precinct units · 0 candidate votes

Michael Bennet0—

Phil Weiser0—

Governor contest result

Loading the complete contest result…

Explore precinct resultsSearch, sort, compare years, or export CSV · 38 precincts

Precinct data

Results by precinct

38 precincts · 17,545 votes

Election

Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.

Summit County precinct-level presidential election results for 2024

Precinct -20813590042081359004	986	321	36	1,343	73.4%	23.9%	D+49.5
Precinct -20813590052081359005	844	420	35	1,299	65.0%	32.3%	D+32.6
Precinct -20813590022081359002	836	386	34	1,256	66.6%	30.7%	D+35.8
Precinct -20813590202081359020	824	328	51	1,203	68.5%	27.3%	D+41.2
Precinct -20813590132081359013	697	375	31	1,103	63.2%	34.0%	D+29.2
Precinct -20813590012081359001	667	328	34	1,029	64.8%	31.9%	D+32.9
Precinct -20813590092081359009	645	352	24	1,021	63.2%	34.5%	D+28.7
Precinct -20813590172081359017	713	267	30	1,010	70.6%	26.4%	D+44.2
Precinct -20813590192081359019	674	253	32	959	70.3%	26.4%	D+43.9
Precinct -20813590072081359007	576	269	25	870	66.2%	30.9%	D+35.3
Precinct -20813590152081359015	563	212	15	790	71.3%	26.8%	D+44.4
Precinct -20813590182081359018	537	222	21	780	68.8%	28.5%	D+40.4
Precinct -20813590162081359016	528	200	32	760	69.5%	26.3%	D+43.2
Precinct -20813590102081359010	460	259	24	743	61.9%	34.9%	D+27.1
Precinct -20813590112081359011	424	225	23	672	63.1%	33.5%	D+29.6
Precinct -20813590062081359006	447	173	22	642	69.6%	26.9%	D+42.7
Precinct -20813590032081359003	419	201	15	635	66.0%	31.7%	D+34.3
Precinct -20813590142081359014	447	141	27	615	72.7%	22.9%	D+49.8
Precinct -20813590082081359008	298	140	20	458	65.1%	30.6%	D+34.5
Precinct -20813590122081359012	177	172	8	357	49.6%	48.2%	D+1.4
Summit 008_0811759000	0	0	0	0	—	—	No votes
Summit 108_0811759001	0	0	0	0	—	—	No votes
Summit 1008_0811759010	0	0	0	0	—	—	No votes
Summit 1108_0811759011	0	0	0	0	—	—	No votes
Summit 1208_0811759012	0	0	0	0	—	—	No votes
Summit 1308_0811759013	0	0	0	0	—	—	No votes
Summit 1408_0811759014	0	0	0	0	—	—	No votes
Summit 1508_0811759015	0	0	0	0	—	—	No votes
Summit 1608_0811759016	0	0	0	0	—	—	No votes
Summit 1708_0811759017	0	0	0	0	—	—	No votes
Summit 208_0811759002	0	0	0	0	—	—	No votes
Summit 308_0811759003	0	0	0	0	—	—	No votes
Summit 408_0811759004	0	0	0	0	—	—	No votes
Summit 508_0811759005	0	0	0	0	—	—	No votes
Summit 608_0811759006	0	0	0	0	—	—	No votes
Summit 708_0811759007	0	0	0	0	—	—	No votes
Summit 808_0811759008	0	0	0	0	—	—	No votes
Summit 908_0811759009	0	0	0	0	—	—	No votes

presidential history

Party record book

Summit County, CO · the strongest Democratic and Republican presidential performances recorded here, measured three ways.

1892–2024 (partial returns from 1880) · 37 presidential cycles · 37 with a vote-share denominator · 34 with a national benchmark

Largest share of the presidential candidate vote cast here.

Democratic

William J. Bryan1896

97.6%

1,243 votes · D+95.4

Runner-up · Woodrow Wilson, 1916 · 70.3%

Republican

Ronald Reagan1984

66.1%

3,253 votes · R+33.9

Runner-up · Dwight D. Eisenhower, 1956 · 64.6%

Most votes

Largest number of votes cast for the party’s presidential nominee here.

Democratic

Joe Biden2020

12,620votes

68.3% of the vote · D+39.5

Runner-up · Kamala Harris, 2024 · 11,762 votes

Republican

Mitt Romney2012

5,571votes

36.4% of the vote · D+24.7

Runner-up · George W. Bush, 2004 · 5,370 votes

Best relative to the U.S.

This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.

Democratic

William J. Bryan1896

+101.5pts D vs U.S.

Place D+95.4 · U.S. R+6.1

Runner-up · William J. Bryan, 1900 · +49.1 pts

Republican

Benjamin Harrison1892

+27.3pts R vs U.S.

Place R+25.6 · U.S. D+1.7 · a third-party candidate carried the Place

Runner-up · Gerald Ford, 1976 · +25.6 pts

current representation

Current officeholders

DMichael BennetU.S. Senate-0.24

DJohn HickenlooperU.S. Senate-0.30

DJoe NeguseU.S. House · CO-02-0.43

DDylan RobertsState Senate · 8

DJulie McCluskieState House · 13

U.S. House elections · 3 House

Senate and governor results are in the Office selector at the top of this page.

U.S. House

Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.

Source · Akashic actual-race rollup from certified returns, House; geographic aggregation.
Year	Vote lead	Democratic	Republican	Total
2024	D	68.7%11,284	31.3%5,145	16,429
2020	D	68.3%11,677	31.7%5,430	17,107
2018	D	68.5%8,835	31.5%4,068	12,903

voter registration

Registered voters

By party of registration, over time

Party registration · 2024D+12.0

Presidential vote · 2024D+37.2

Registration leans Democratic; the presidential vote runs 25 points more Democratic than the rolls.

DemocraticRepublicanUnaffiliatedOther parties

Voter registration in Summit County, CO
Year	Total registered	Democratic	Republican	Unaffiliated	Other
2016	26,984	8,099	6,078	12,197	610
2018	27,670	8,190	5,740	13,133	607
2020	25,849	7,737	4,859	12,697	556
2022	25,948	7,442	4,264	13,693	549
2024	25,918	7,020	3,905	14,354	639

domestic migration

Who moves in and out

Net migration over time, and who arrivals are — where they came from and what those places vote

−448 net domestic migration · 2025

20112025

Net −2,080 over 2011–2025 · gain loss

Arrivals reported $134,350 in average income, against $138,951 for residents who stayed — 3% lower. (IRS SOI, 2022–23)

The places arrivals came from lean D+27.9 on average — 9.2 points more Republican-leaning than Summit County, CO itself (D+37.2).

Where arrivals came from lean of each source

Denver County, CO183D+56.1
Jefferson County, CO93D+19.5
Boulder County, CO50D+55.7
Eagle County, CO42D+24.4
Arapahoe County, CO41D+20.1
Douglas County, CO35R+7.0

Where departures went households, 2022–23

Denver County, CO161
Jefferson County, CO122
Arapahoe County, CO66
Grand County, CO58
Park County, CO51
Boulder County, CO41

Domestic migration in Summit County, CO in Summit County, CO: net domestic migration by year
Year	Net domestic migration
2011	−465
2012	−125
2013	+173
2014	+274
2015	+395
2016	+169
2017	−40
2018	−338
2019	−105
2021	−198
2022	−625
2023	−426
2024	−321
2025	−448

Political twins — counties

The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Routt County

Colorado

96.4twin score

12-yr trend2020–2024 trajectorycollege share≠ Polish ancestry

Eagle County

Colorado

95.9twin score

2016–2024 trajectory12-yr trend≠ Swedish ancestry

Blaine County

Idaho

95.1twin score

2016–2024 trajectory12-yr trend≠ median age

Browse places by community — income, education, race & ethnicity, language — all community cuts →

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

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Cities & towns in Summit County

Colorado at the ballot boxAll elections →

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Frequently asked questions

How did Summit County, Colorado vote in 2024?

In 2024, Summit County, Colorado voted Democratic by 37.2 points (D+37.2), carried by the Democratic candidate. Out of 17,545 votes cast, 11,762 went Democratic and 5,244 went Republican.

When did Summit County, Colorado last vote Republican?

The most recent presidential election in which Summit County, Colorado voted Republican was 1988.

How many people live in Summit County, Colorado?

Summit County, Colorado has a population of 31,017 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Summit County, Colorado?

Median household income in Summit County, Colorado is $109,773 — above the national median of $80,734. The Colorado state median is $95,470.

What is the political history of Summit County, Colorado?

Akashic tracks 38 presidential elections in Summit County, Colorado from 1876 to 2024. Of those, 21 went Democratic and 15 went Republican.

President margin by year

President results by year

Key facts

Summit County result

Governor contest result

Results by precinct

Party record book

Highest vote share

Most votes

Best relative to the U.S.

Current officeholders

U.S. House

Registered voters

Who moves in and out

Where arrivals came from lean of each source

Where departures went households, 2022–23

Compare two places, side by side

Frequently asked questions

President margin by year

President results by year

Key facts

Summit County result

Governor contest result

Results by precinct

Party record book

Highest vote share

Most votes

Best relative to the U.S.

Current officeholders

U.S. House

Registered voters

Who moves in and out

Where arrivals came from lean of each source

Where departures went households, 2022–23

Compare two places, side by side

Frequently asked questions