Piatt County, Illinois: Stable Rural Right county. In 2024, voted R+31%. Republican peak: R+40 in 1928.
Key facts
- 2024 presidential margin
- R+31MIT Election Lab
- Political typology
- Stable Rural RightAkashic typology
- Population
- 16,6952024 5-year
- Median household income
- $94,8112024 5-year
- White (non-Hispanic)
- 95.0%2024 5-year
- Black
- 1.4%2024 5-year
- Hispanic / Latino
- 1.6%2024 5-year
- Peak Democratic margin
- D+14 in 1932MIT Election Lab
- Peak Republican margin
- R+40 in 1928MIT Election Lab
- Most similar
- Warrick County, IN · similarity 0.99
2024 results by precinct
2024 precinct map of Piatt CountyPrecinct-level 2024 presidential results for Piatt County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −5.8% |
| 1896 | −13.5% |
| 1900 | −16.1% |
| 1904 | −29.7% |
| 1908 | −20.2% |
| 1912 | +9.4% |
| 1916 | −13.6% |
| 1920 | −37.9% |
| 1924 | −35.0% |
| 1928 | −39.7% |
| 1932 | +13.7% |
| 1936 | +1.9% |
| 1940 | −12.3% |
| 1944 | −19.3% |
| 1948 | −21.2% |
| 1952 | −35.8% |
| 1956 | −32.5% |
| 1960 | −21.9% |
| 1964 | +10.7% |
| 1968 | −21.6% |
| 1972 | −35.7% |
| 1976 | −11.6% |
| 1980 | −31.3% |
| 1984 | −27.4% |
| 1988 | −14.3% |
| 1992 | +5.3% |
| 1996 | +0.1% |
| 2000 | −13.5% |
| 2004 | −26.4% |
| 2008 | −12.6% |
| 2012 | −26.6% |
| 2016 | −33.0% |
| 2020 | −29.6% |
| 2024 | −30.5% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 3,204 | 6,104 | 9,508 | ||
| R | 3,329 | 6,248 | 9,851 | ||
| R | 2,645 | 5,634 | 9,060 | ||
| R | 3,090 | 5,413 | 8,742 | ||
| R | 3,859 | 4,991 | 8,999 | ||
| R | 3,124 | 5,392 | 8,586 | ||
| R | 3,488 | 4,619 | 8,385 | ||
| D | 3,274 | 3,265 | 7,412 | ||
| D | 3,520 | 3,076 | 8,447 | ||
| R | 3,099 | 4,137 | 7,277 | ||
| R | 2,840 | 5,000 | 7,879 | ||
| R | 2,421 | 4,867 | 7,818 | ||
| R | 3,509 | 4,442 | 8,020 | ||
| R | 2,394 | 5,057 | 7,468 | ||
| R | 2,447 | 3,973 | 7,059 | ||
| D | 3,897 | 3,141 | 7,038 | ||
| R | 2,889 | 4,506 | 7,399 | ||
| R | 2,356 | 4,622 | 6,979 | ||
| R | 2,220 | 4,701 | 6,932 | ||
| R | 2,361 | 3,646 | 6,064 | ||
| R | 2,641 | 3,912 | 6,588 | ||
| R | 3,564 | 4,564 | 8,159 | ||
| D | 4,084 | 3,931 | 8,061 | ||
| D | 4,200 | 3,179 | 7,443 | ||
| R | 1,959 | 4,565 | 6,557 | ||
| R | 1,733 | 3,799 | 5,907 | ||
| R | 1,903 | 4,283 | 6,284 | ||
| R | 3,028 | 4,012 | 7,226 | ||
| D | 1,417 | 1,064 | 3,745 | ||
| R | 1,530 | 2,349 | 4,053 | ||
| R | 1,334 | 2,515 | 3,977 | ||
| R | 1,905 | 2,648 | 4,620 | ||
| R | 1,958 | 2,579 | 4,600 | ||
| R | 1,896 | 2,138 | 4,186 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
23.5%
English
17.3%
Irish
13.8%
American
5.9%
Scottish
2.3%
Italian
1.6%
Polish
1.5%
African American
1.1%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 42.8 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$94,811
Piatt County ranks in the top 5% of US counties.
Piatt County$94,811
Illinois$83,390
United States$80,734
Piatt County ranks in the top 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
6.1%
Child poverty is below the national average.
Children under 186.7%
Working age (18–64)6.0%
Seniors (65+)6.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
97.6%
speak English only
Spanish1.2%
Other Indo-European0.6%
Asian & Pacific Islander0.6%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 63.4% of residents not counted as adherents by any reporting body.
Piatt County's 16,000 residents are concentrated in agriculture and small manufacturing, a demographic profile that has tracked closely with the statewide rural realignment — its 2024 presidential margin of R+30.5 reflects a roughly 15-point shift rightward over the past decade.
The Republican margin here reached forty points in 1928. Between 2020 and 2024 the county moved one point toward the Republican candidate; the 2024 margin was thirty-one points.
A population of 16,695, a 95% non-Hispanic-white share, and a median household income of $94,811 describe the county. The county's voting pattern over the last decade is most similar to that of Warrick County and Douglas County.
Most similar counties
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.
Piatt County, Illinois. Akashic. https://akashic.app/county/17147/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More stable rural right counties
Frequently asked questions
How did Piatt County, Illinois vote in 2024?
In 2024, Piatt County, Illinois voted Republican by 30.5 points (R+31), carried by the Republican candidate. Out of 9,508 votes cast, 3,204 went Democratic and 6,104 went Republican.
What is Piatt County, Illinois's political typology?
Akashic places Piatt County, Illinois in the "Stable Rural Right" typology — Mountain, Plains, and rural Republican counties already near their ceiling, with little further room to swing. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 6 times, Republican 28 times, and other 0 times.
When did Piatt County, Illinois last vote Democratic?
The most recent presidential election in which Piatt County, Illinois voted Democratic was 1996.
How many people live in Piatt County, Illinois?
Piatt County, Illinois has a population of 16,695 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Piatt County, Illinois?
Median household income in Piatt County, Illinois is $94,811 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Piatt County, Illinois?
Akashic tracks 38 presidential elections in Piatt County, Illinois from 1876 to 2024. Of those, 6 went Democratic and 28 went Republican. The county's typology — "Stable Rural Right" — captures where that record, its demographics, and its recent swing place it among American communities.