HarrisDemocratic17.7%739TrumpRepublican81.0%3,385KennedyIndependent1.4%57
R+63.3- Lead
- 2,646
- Total
- 4,181
- vs nation
- R+61.8
- Turnout
- 68.6%
Akashiccounty
Hamilton 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 68.6% of 6,169 citizens 18+
BidenDemocratic19.1%824TrumpRepublican79.4%3,432JorgensenLibertarian0.9%41
R+60.3- Lead
- 2,608
- Total
- 4,323
- vs nation
- R+64.8
- Turnout
- 68.9%
ClintonDemocratic19.3%802TrumpRepublican77.1%3,206JohnsonLibertarian2.7%114
R+57.8- Lead
- 2,404
- Total
- 4,156
- vs nation
- R+59.9
- Turnout
- 65.0%
ObamaDemocratic32.2%1,269RomneyRepublican65.1%2,566JOHNSONLibertarian1.6%63
R+32.9- Lead
- 1,297
- Total
- 3,941
- vs nation
- R+36.8
- Turnout
- —
ObamaDemocratic42.1%1,796McCainRepublican55.2%2,353OtherAll other candidates2.7%115
R+13.1- Lead
- 557
- Total
- 4,264
- vs nation
- R+20.3
- Turnout
- —
KerryDemocratic40.2%1,814BushRepublican58.8%2,653OtherAll other candidates1.0%47
R+18.6- Lead
- 839
- Total
- 4,514
- vs nation
- R+16.1
- Turnout
- —
GoreDemocratic42.4%1,943BushRepublican54.9%2,519NaderGreen1.6%75
R+12.6- Lead
- 576
- Total
- 4,587
- vs nation
- R+13.1
- Turnout
- —
ClintonDemocratic49.7%2,242DoleRepublican37.2%1,677PerotReform12.4%560
D+12.5- Lead
- 565
- Total
- 4,509
- vs nation
- D+4.0
- Turnout
- —
Key facts
- 2024 presidential margin
- R+63.3MIT Election Lab
- Population
- 7,9162024 5-year
- Population density
- 18 / sq mi2024 5-year · TIGER/Line
- Land area
- 435 sq miTIGER/Line
- Median household income
- $65,7462024 5-year
- White (non-Hispanic)
- 94.7%2024 5-year
- Black
- 0.2%2024 5-year
- Hispanic / Latino
- 0.7%2024 5-year
- Peak Democratic margin
- D+23.4 in 1932MIT Election Lab
- Peak Republican margin
- R+63.3 in 2024MIT Election Lab
- Most similar
- Gentry County, MO · twin score 83.3
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
- 68.6%4,234 participants ÷ 6,169 CVAP
- 2020→2022 drop-off
- +12.4 ptsVolatile
- Drop-off vs state
- -9.6 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 56.2%–58.9%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 |
|---|---|---|---|---|---|
| 4,234 | 6,169 ± 70 | 68.6% | Audited | A/A | |
| 2022Mid | 3,521 | 6,240 ± 96 | 56.4% | Audited | A/A |
| 4,374 | 6,351 ± 89 | 68.9% | Audited | A/A | |
| 2018Mid | 3,689 | 6,364 ± 83 | 58.0% | Audited | A/A |
| 4,156 | 6,398 ± 17 | 65.0% | Audited | C/A | |
| 3,941 | 6,487 | 60.8% | Derived | — | |
| 4,264 | 6,351 | 67.1% | Derived | — | |
| 4,514 | 6,215 extrapolated | 72.6% | 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 Hamilton County only. The complete contest result is shown below for comparison.
Hamilton 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 · 32 precincts
Precinct data
Results by precinct
32 precincts · 4,234 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -MCLEANSBORO 3MCLEANSBORO 3 | 120 | 443 | 16 | 579 | 20.7% | 76.5% | R+55.8 |
|---|---|---|---|---|---|---|---|
| Precinct -MCLEANSBORO 2MCLEANSBORO 2 | 82 | 347 | 16 | 445 | 18.4% | 78.0% | R+59.6 |
| Precinct -MCLEANSBORO 4MCLEANSBORO 4 | 69 | 324 | 8 | 401 | 17.2% | 80.8% | R+63.6 |
| Precinct -MCLEANSBORO 1MCLEANSBORO 1 | 71 | 293 | 6 | 370 | 19.2% | 79.2% | R+60.0 |
| Precinct -DAHLGREN 2DAHLGREN 2 | 62 | 267 | 10 | 339 | 18.3% | 78.8% | R+60.5 |
| Precinct -KNIGHTS PRAIRIEKNIGHTS PRAIRIE | 41 | 264 | 6 | 311 | 13.2% | 84.9% | R+71.7 |
| Precinct -DAHLGREN 1DAHLGREN 1 | 44 | 248 | 9 | 301 | 14.6% | 82.4% | R+67.8 |
| Precinct -TWIGGTWIGG | 44 | 203 | 3 | 250 | 17.6% | 81.2% | R+63.6 |
| Precinct -CROUCHCROUCH | 46 | 187 | 8 | 241 | 19.1% | 77.6% | R+58.5 |
| Precinct -CROOKCROOK | 45 | 154 | 6 | 205 | 22.0% | 75.1% | R+53.2 |
| Precinct -MAYBERRYMAYBERRY | 24 | 167 | 3 | 194 | 12.4% | 86.1% | R+73.7 |
| Precinct -FLANNIGANFLANNIGAN | 37 | 143 | 6 | 186 | 19.9% | 76.9% | R+57.0 |
| Precinct -BEAVER CREEKBEAVER CREEK | 15 | 136 | 0 | 151 | 9.9% | 90.1% | R+80.1 |
| Precinct -SOUTH CROUCHSOUTH CROUCH | 14 | 100 | 7 | 121 | 11.6% | 82.6% | R+71.1 |
| Precinct -SOUTH TWIGGSOUTH TWIGG | 15 | 55 | 5 | 75 | 20.0% | 73.3% | R+53.3 |
| Precinct -SOUTH FLANNIGANSOUTH FLANNIGAN | 10 | 54 | 1 | 65 | 15.4% | 83.1% | R+67.7 |
| BEAVER CREEK Voting District17_1706500101 | 0 | 0 | 0 | 0 | — | — | No votes |
| CROOK Voting District17_1706500201 | 0 | 0 | 0 | 0 | — | — | No votes |
| CROUCH Voting District17_1706500301 | 0 | 0 | 0 | 0 | — | — | No votes |
| DAHLGREN NO 1 Voting District17_1706500401 | 0 | 0 | 0 | 0 | — | — | No votes |
| DAHLGREN NO 2 Voting District17_1706500402 | 0 | 0 | 0 | 0 | — | — | No votes |
| FLANNINGAN Voting District17_1706500501 | 0 | 0 | 0 | 0 | — | — | No votes |
| KNIGHTS PRAIRIE NO 1 Voting District17_1706500601 | 0 | 0 | 0 | 0 | — | — | No votes |
| MAYBERRY NO 1 Voting District17_1706500701 | 0 | 0 | 0 | 0 | — | — | No votes |
| MCLEANSBORO NO 1 Voting District17_1706500801 | 0 | 0 | 0 | 0 | — | — | No votes |
| MCLEANSBORO NO 2 Voting District17_1706500802 | 0 | 0 | 0 | 0 | — | — | No votes |
| MCLEANSBORO NO 3 Voting District17_1706500803 | 0 | 0 | 0 | 0 | — | — | No votes |
| MCLEANSBORO NO 4 Voting District17_1706500804 | 0 | 0 | 0 | 0 | — | — | No votes |
| SOUTH CROUCH Voting District17_1706500901 | 0 | 0 | 0 | 0 | — | — | No votes |
| SOUTH FLANNINGAN Voting District17_1706501001 | 0 | 0 | 0 | 0 | — | — | No votes |
| SOUTH TWIGG Voting District17_1706501101 | 0 | 0 | 0 | 0 | — | — | No votes |
| TWIGG Voting District17_1706501201 | 0 | 0 | 0 | 0 | — | — | No votes |
presidential history
Party record book
Hamilton 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
61.3%
4,059 votes · D+23.4
Runner-up · William J. Bryan, 1896 · 57.1%
Republican
Donald Trump2024
81.0%
3,385 votes · R+63.3
Runner-up · Donald Trump, 2020 · 79.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
4,152votes
55.1% of the vote · D+11.0
Runner-up · Franklin D. Roosevelt, 1932 · 4,059 votes
Republican
Dwight D. Eisenhower1952
4,047votes
60.3% of the vote · R+20.6
Runner-up · Wendell Willkie, 1940 · 4,005 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
John W. Davis1924
+33.6pts D vs U.S.
Place D+8.4 · U.S. R+25.2
Runner-up · Alton B. Parker, 1904 · +23.4 pts
Republican
Donald Trump2020
+64.8pts R vs U.S.
Place R+60.3 · U.S. D+4.5
Runner-up · Donald Trump, 2024 · +61.8 pts
current representation
Current officeholders
RTerri BryantState Senate · 58
RDave SeverinState House · 116
RPatrick WindhorstState House · 117
Seats representing Hamilton County, IL. A county elects none of these itself — they are the members for the 1 congressional, 2 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 | 5,879 |
| 2018 | 5,829 |
| 2020 | 5,760 |
| 2022 | 5,578 |
| 2024 | 5,797 |
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+20 net domestic migration · 2025
20112025
Net −114 over 2011–2025 · gain loss
Arrivals reported $47,081 in average income, against $70,604 for residents who stayed — 33% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+52.2 on average — 11 points more Democratic-leaning than Hamilton County, IL itself (R+63.3).
Where arrivals came from lean of each source
- Franklin County, IL25R+50.5
- Jefferson County, IL25R+47.7
- White County, IL21R+59.4
Where departures went households, 2022–23
- Jefferson County, IL24
- White County, IL22
- Franklin County, IL20
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 | 0 |
| 2012 | −19 |
| 2013 | −7 |
| 2014 | +5 |
| 2015 | −56 |
| 2016 | −51 |
| 2017 | +5 |
| 2018 | −11 |
| 2019 | −7 |
| 2021 | −34 |
| 2022 | +103 |
| 2023 | −40 |
| 2024 | −22 |
| 2025 | +20 |
Hamilton County, in deep southern Illinois, recorded an R+63.3 presidential margin in 2024, reflecting the region's sharp rightward shift over the past two decades as rural downstate communities have diverged from the Chicago metro.
Across the recorded series it reached a Democratic high of 23.4 points in 1932 and a Republican high of 63.3 points in 2024. Between 2020 and 2024 the county moved 3.0 points toward the Republican candidate; the 2024 margin was 63.3 points.
A population of 7,916, a 95% non-Hispanic-white share, and a median household income of $65,746 describe the county. The county's voting pattern over the last decade is most similar to that of Gentry County and Shelby County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Gentry County
Missouri
83.3twin score
2016–2024 trajectory12-yr trend≠ % unaffiliated
Shelby County
Illinois
82.9twin score
12-yr trend2016–2024 trajectory≠ % Evangelical
Pendleton County
Kentucky
82.8twin score
12-yr trend2016–2024 trajectory≠ Scottish ancestry
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.
Hamilton County, Illinois. Akashic. https://akashic.app/county/17065/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in Hamilton County
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Frequently asked questions
How did Hamilton County, Illinois vote in 2024?
In 2024, Hamilton County, Illinois voted Republican by 63.3 points (R+63.3), carried by the Republican candidate. Out of 4,181 votes cast, 739 went Democratic and 3,385 went Republican.
When did Hamilton County, Illinois last vote Democratic?
The most recent presidential election in which Hamilton County, Illinois voted Democratic was 1996.
How many people live in Hamilton County, Illinois?
Hamilton County, Illinois has a population of 7,916 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Hamilton County, Illinois?
Median household income in Hamilton County, Illinois is $65,746 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Hamilton County, Illinois?
Akashic tracks 38 presidential elections in Hamilton County, Illinois from 1876 to 2024. Of those, 14 went Democratic and 20 went Republican.