HarrisDemocratic19.0%467TrumpRepublican78.9%1,938KennedyIndependent2.0%50
R+59.9- Lead
- 1,471
- Total
- 2,455
- vs nation
- R+58.4
- Turnout
- 47.8%
Akashiccounty
Brown County, IL
Contests in this Place (90 available)
President34 · 1892–2024 · 3 mapped
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
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 1892–2024.
President results by year
2024 turnout 47.8% of 5,201 citizens 18+
BidenDemocratic19.2%486TrumpRepublican76.5%1,931JorgensenLibertarian1.9%47
R+57.2- Lead
- 1,445
- Total
- 2,525
- vs nation
- R+61.7
- Turnout
- 47.4%
ClintonDemocratic20.0%476TrumpRepublican75.5%1,796JohnsonLibertarian3.2%77
R+55.5- Lead
- 1,320
- Total
- 2,379
- vs nation
- R+57.6
- Turnout
- 41.8%
ObamaDemocratic33.3%787RomneyRepublican64.0%1,513JOHNSONLibertarian1.7%40
R+30.7- Lead
- 726
- Total
- 2,364
- vs nation
- R+34.6
- Turnout
- —
ObamaDemocratic38.4%986McCainRepublican60.1%1,544OtherAll other candidates1.5%39
R+21.7- Lead
- 558
- Total
- 2,569
- vs nation
- R+29.0
- Turnout
- —
KerryDemocratic34.6%895BushRepublican65.0%1,679OtherAll other candidates0.4%11
R+30.3- Lead
- 784
- Total
- 2,585
- vs nation
- R+27.9
- Turnout
- —
GoreDemocratic40.5%1,077BushRepublican57.5%1,529NaderGreen1.1%29
R+17.0- Lead
- 452
- Total
- 2,660
- vs nation
- R+17.5
- Turnout
- —
ClintonDemocratic43.4%997DoleRepublican45.8%1,053PerotReform10.3%237
R+2.4- Lead
- 56
- Total
- 2,297
- vs nation
- R+11.0
- Turnout
- —
Key facts
- 2024 presidential margin
- R+59.9MIT Election Lab
- Population
- 6,3222024 5-year
- Population density
- 21 / sq mi2024 5-year · TIGER/Line
- Land area
- 306 sq miTIGER/Line
- Median household income
- $67,9172024 5-year
- White (non-Hispanic)
- 74.1%2024 5-year
- Black
- 17.8%2024 5-year
- Hispanic / Latino
- 6.7%2024 5-year
- Peak Democratic margin
- D+42.3 in 1912MIT Election Lab
- Peak Republican margin
- R+59.9 in 2024MIT Election Lab
- Most similar
- Pershing County, NV · twin score 78.7
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
- 47.8%2,487 participants ÷ 5,201 CVAP
- 2020→2022 drop-off
- -18.9 ptsMidterm-resilient, low base
- Drop-off vs state
- -40.9 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 54.0%–66.7%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm Derived, pre-2016
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 2,487 | 5,201 ± 86 | 47.8% | Audited | A/A | |
| 2022Mid | 3,437 | 5,184 ± 117 | 66.3% | Audited | A/A |
| 2,545 | 5,364 ± 251 | 47.4% | Audited | A/A | |
| 2018Mid | 1,940 | 5,515 ± 175 | 35.2% | Audited | A/A |
| 2,379 | 5,697 ± 68 | 41.8% | Audited | C/A | |
| 2,364 | 5,651 | 41.8% | Derived | — | |
| 2,569 | 5,341 | 48.1% | Derived | — | |
| 2,585 | 5,031 extrapolated | 51.4% | 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 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 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 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 148/111.
- 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 Brown County only. The complete contest result is shown below for comparison.
Brown County result
0 precinct units · 0 candidate votes
JB Pritzker0—
Governor contest result
Loading the complete contest result…
Explore precinct resultsSearch, sort, compare years, or export CSV · 28 precincts
Precinct data
Results by precinct
28 precincts · 2,486 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -MT STERLING 1MT STERLING 1 | 121 | 353 | 19 | 493 | 24.5% | 71.6% | R+47.1 |
|---|---|---|---|---|---|---|---|
| Precinct -MT STERLING 2MT STERLING 2 | 50 | 188 | 8 | 246 | 20.3% | 76.4% | R+56.1 |
| Precinct -MT STERLING 4MT STERLING 4 | 45 | 170 | 11 | 226 | 19.9% | 75.2% | R+55.3 |
| Precinct -MT STERLING 5MT STERLING 5 | 47 | 152 | 5 | 204 | 23.0% | 74.5% | R+51.5 |
| Precinct -VERSAILLES 2VERSAILLES 2 | 24 | 172 | 5 | 201 | 11.9% | 85.6% | R+73.6 |
| Precinct -COOPERSTOWNCOOPERSTOWN | 26 | 164 | 5 | 195 | 13.3% | 84.1% | R+70.8 |
| Precinct -ELKHORNELKHORN | 34 | 151 | 5 | 190 | 17.9% | 79.5% | R+61.6 |
| Precinct -VERSAILLES 1VERSAILLES 1 | 29 | 126 | 7 | 162 | 17.9% | 77.8% | R+59.9 |
| Precinct -LEELEE | 27 | 124 | 5 | 156 | 17.3% | 79.5% | R+62.2 |
| Precinct -MT STERLING 3MT STERLING 3 | 19 | 97 | 4 | 120 | 15.8% | 80.8% | R+65.0 |
| Precinct -PEA RIDGEPEA RIDGE | 13 | 94 | 5 | 112 | 11.6% | 83.9% | R+72.3 |
| Precinct -MISSOURIMISSOURI | 20 | 65 | 2 | 87 | 23.0% | 74.7% | R+51.7 |
| Precinct -BUCKHORNBUCKHORN | 5 | 49 | 0 | 54 | 9.3% | 90.7% | R+81.5 |
| Precinct -RIPLEYRIPLEY | 7 | 33 | 0 | 40 | 17.5% | 82.5% | R+65.0 |
| BUCKHORN Voting District17_1700900101 | 0 | 0 | 0 | 0 | — | — | No votes |
| COOPERSTOWN Voting District17_1700900201 | 0 | 0 | 0 | 0 | — | — | No votes |
| ELKHORN Voting District17_1700900301 | 0 | 0 | 0 | 0 | — | — | No votes |
| LEE Voting District17_1700900401 | 0 | 0 | 0 | 0 | — | — | No votes |
| MISSOURI Voting District17_1700900501 | 0 | 0 | 0 | 0 | — | — | No votes |
| MT STERLING 1 Voting District17_1700900601 | 0 | 0 | 0 | 0 | — | — | No votes |
| MT STERLING 2 Voting District17_1700900602 | 0 | 0 | 0 | 0 | — | — | No votes |
| MT STERLING 3 Voting District17_1700900603 | 0 | 0 | 0 | 0 | — | — | No votes |
| MT STERLING 4 Voting District17_1700900604 | 0 | 0 | 0 | 0 | — | — | No votes |
| MT STERLING 5 Voting District17_1700900605 | 0 | 0 | 0 | 0 | — | — | No votes |
| PEA RIDGE Voting District17_1700900701 | 0 | 0 | 0 | 0 | — | — | No votes |
| RIPLEY Voting District17_1700900801 | 0 | 0 | 0 | 0 | — | — | No votes |
| VERSAILLES 1 Voting District17_1700900901 | 0 | 0 | 0 | 0 | — | — | No votes |
| VERSAILLES 2 Voting District17_1700900902 | 0 | 0 | 0 | 0 | — | — | No votes |
presidential history
Party record book
Brown County, IL · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
70.7%
2,822 votes · D+41.9
Runner-up · William J. Bryan, 1896 · 66.2%
Republican
Donald Trump2024
78.9%
1,938 votes · R+59.9
Runner-up · Donald Trump, 2020 · 76.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
2,873votes
63.2% of the vote · D+28.2
Runner-up · Woodrow Wilson, 1916 · 2,856 votes
Republican
Herbert Hoover1928
2,289votes
55.0% of the vote · R+10.1
Runner-up · Dwight D. Eisenhower, 1952 · 2,137 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. Bryan1900
+40.2pts D vs U.S.
Place D+32.6 · U.S. R+7.5
Runner-up · William J. Bryan, 1896 · +39.4 pts
Republican
Donald Trump2020
+61.7pts R vs U.S.
Place R+57.2 · U.S. D+4.5
Runner-up · Donald Trump, 2024 · +58.4 pts
current representation
Current officeholders
RJil TracyState Senate · 50
RKyle MooreState House · 99
RC.D. DavidsmeyerState House · 100
Seats representing Brown County, IL. A county elects none of these itself — they are the members for the 1 congressional, 1 state senate and 2 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.
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 3,769 |
| 2018 | 3,509 |
| 2020 | 3,574 |
| 2022 | 3,437 |
| 2024 | 3,274 |
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−27 net domestic migration · 2025
20112025
Net −164 over 2011–2025 · gain loss
Arrivals reported $51,110 in average income, against $74,202 for residents who stayed — 31% lower. (IRS SOI, 2022–23)
Where departures went households, 2022–23
- Adams County, IL32
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.
| Year | Net domestic migration |
|---|---|
| 2011 | −27 |
| 2012 | −11 |
| 2013 | −32 |
| 2014 | −15 |
| 2015 | −94 |
| 2016 | −139 |
| 2017 | −25 |
| 2018 | −54 |
| 2019 | +10 |
| 2021 | +232 |
| 2022 | +13 |
| 2023 | +44 |
| 2024 | −39 |
| 2025 | −27 |
Brown County's rural, sparsely populated landscape has produced some of the widest presidential margins in the state, with fewer than 7,000 residents concentrated in small towns and farmland along the Illinois River bluffs.
Across the recorded series it reached a Democratic high of 42.3 points in 1912 and a Republican high of 59.9 points in 2024. Between 2020 and 2024 the county moved 2.7 points toward the Republican candidate; the 2024 margin was 59.9 points.
A population of 6,322, a 74% non-Hispanic-white share, and a median household income of $67,917 describe the county. The county's voting pattern over the last decade is most similar to that of Pershing County and Gilmer County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Pershing County
Nevada
78.7twin score
12-yr trend% unaffiliated% Evangelical≠ 2000 margin
Gilmer County
West Virginia
78.6twin score
12-yr trend% unaffiliated% Evangelical≠ elasticity
Robertson County
Kentucky
78.5twin score
12-yr trend2020–2024 trajectory% unaffiliated≠ % Catholic
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.
Brown County, Illinois. Akashic. https://akashic.app/county/17009/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Brown County, Illinois vote in 2024?
In 2024, Brown County, Illinois voted Republican by 59.9 points (R+59.9), carried by the Republican candidate. Out of 2,455 votes cast, 467 went Democratic and 1,938 went Republican.
When did Brown County, Illinois last vote Democratic?
The most recent presidential election in which Brown County, Illinois voted Democratic was 1992.
How many people live in Brown County, Illinois?
Brown County, Illinois has a population of 6,322 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Brown County, Illinois?
Median household income in Brown County, Illinois is $67,917 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Brown County, Illinois?
Akashic tracks 38 presidential elections in Brown County, Illinois from 1876 to 2024. Of those, 17 went Democratic and 17 went Republican.