state senate districtColorado 12th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004R+18.1
2008R+1.6
2012R+2.2
2016R+6.9
2020D+3.5
2024D+4.0
net swing · 2004→2024D+22.1R+18.1 → D+4.0
vs. U.S. · 2024D+5.5D+4.0 vs R+1.5
presidential returns
2024 turnout 62.3% of 126,871 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
39,983
36,798
2,248
79,029
126,871
62.3%
2020
40,948
38,085
2,714
81,747
119,818†
68.2%
2016
30,023
35,033
7,120
72,176
110,007†
65.6%
2012
32,964
34,460
1,765
69,189
101,786†
68.0%
2008
30,801
31,794
1,165
63,760
94,881†
67.2%
2004
22,003
31,949
998
54,950
87,976†
62.5%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupCO SD 12ColoradoUnited States
German19.3%17.9%12.5%
English13.8%12.6%9.5%
Irish12.2%11.2%9.4%
Italian4.8%4.9%4.8%
American4.8%3.5%5.3%
Scottish3.0%2.5%1.3%
Polish2.6%2.1%2.2%
French2.4%2.0%1.6%
Mexican10.5%15.8%11.3%
Puerto Rican1.3%0.7%1.8%
Spanish1.2%1.2%—
Spaniard0.7%1.0%—
Cuban0.4%0.3%0.7%
Guatemalan0.3%—0.5%
Colombian0.3%0.3%0.4%
Dominican0.2%—0.7%
African American†5.3%2.8%9.9%
African0.5%0.2%0.5%
Nigerian0.2%—0.2%
Jamaican0.2%—0.4%
Filipino0.6%0.3%0.9%
Korean0.4%0.3%0.4%
Chinese0.4%0.6%1.3%
Asian Indian0.3%0.6%1.4%
Vietnamese0.3%0.4%0.6%
Japanese0.2%—0.2%
Aztec1.4%0.1%—
Navajo0.7%0.1%—
Maya0.7%——
Native Hawaiian0.7%——
Samoan0.7%——
Chamorro0.7%——
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
CO SD 12
Colorado
United States
Median age
34
37.9
39.1
Age 18–24
10.5%
9.2%
9.2%
Age 65 and older
14.0%
15.5%
17.2%
Household economy
Measure
CO SD 12
Colorado
United States
Median household income
$84,410
$95,470
$84,427
Poverty rate
9.8%
9.5%
12.5%
Bachelor's degree or higher (25+)
41.9%
45.5%
35.6%
Languages at home
Measure
CO SD 12
Colorado
United States
Speaks a non-English language at home
11.3%
16.2%
22.3%
Spanish
7.1%
11.1%
13.6%
Religious landscape
Measure
CO SD 12
Colorado
United States
Catholic
—
15.1%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
64.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Colorado 12th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−18.1%
2008
−1.6%
2012
−2.2%
2016
−6.9%
2020
+3.5%
2024
+4.0%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
50.6%Harris39,983
46.6%Trump36,798
2.8%
D+4.0
D+0.5
D+5.5
79,029
D
50.1%Biden40,948
46.6%Trump38,085
3.3%
D+3.5
D+10.4
R+0.9
81,747
R
41.6%Clinton30,023
48.5%Trump35,033
9.9%
R+6.9
R+4.8
R+9.0
72,176
R
47.6%Obama32,964
49.8%Romney34,460
2.6%
R+2.2
R+0.6
R+6.0
69,189
R
48.3%Obama30,801
49.9%McCain31,794
1.8%
R+1.6
D+16.5
R+8.8
63,760
R
40.0%Kerry22,003
58.1%Bush31,949
1.8%
R+18.1
—
R+15.6
54,950
current representation
Current officeholders
DMarc SnyderState Senate · 12
State legislative officeholder from OpenStates nightly current-legislator data.
District 12 returned a 58-point Democratic presidential margin in 2024, placing it among the most lopsided state senate districts in Colorado. Its urban core and dense residential neighborhoods anchor that consistency across election cycles.
Across the recorded series it reached a Democratic high of 4.0 points in 2024 and a Republican high of 18.1 points in 2004. Between 2020 and 2024 the district moved 0.5 points toward the Democratic candidate; the 2024 margin was 4.0 points.
A population of 168,536, a 66% non-Hispanic-white share, and a median household income of $84,410 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 10 and State Senate District 14.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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.
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.
Colorado 12th State Senate District. Akashic. https://akashic.app/sld-upper/08012/. Accessed May 20, 2026. License: CC BY 4.0.
How did Colorado 12th State Senate District vote in 2024?
In 2024, Colorado 12th State Senate District voted Democratic by 4.0 points (D+4.0), carried by the Democratic candidate. Out of 79,029 votes cast, 39,983 went Democratic and 36,798 went Republican.
When did Colorado 12th State Senate District last vote Republican?
The most recent presidential election in which Colorado 12th State Senate District voted Republican was 2016.
How many people live in Colorado 12th State Senate District?
Colorado 12th State Senate District has a population of 168,536 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Colorado 12th State Senate District?
Median household income in Colorado 12th State Senate District is $84,410 — above the national median of $80,734. The Colorado state median is $95,470.
What is the political history of Colorado 12th State Senate District?
Akashic tracks 6 presidential elections in Colorado 12th State Senate District from 2004 to 2024. Of those, 2 went Democratic and 4 went Republican.
