Miami County, Ohio
AkashicMiami County, OHTrumpR+45.1
2024 precinct map of Miami CountyPrecinct-level 2024 presidential results for Miami County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Donald Trump ✓Republican | 72.1% | 42,677 |
|---|---|---|
| Kamala HarrisDemocratic | 27.0% | 15,969 |
| Chase OliverIndependent | 0.5% | 311 |
Harris +50Trump +50
87 precincts · 59,188 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 27.0%Harris15,969 | 72.1%Trump42,677 | 0.5%Oliver311 | 59,188 | ||
| R | 27.0%Biden15,663 | 71.4%Trump41,371 | 1.3%Jorgensen782 | 57,972 | ||
| R | 24.5%Clinton13,120 | 69.2%Trump37,079 | 3.4%Johnson1,837 | 53,567 | ||
| R | 31.4%Obama16,383 | 66.3%Romney34,606 | 1.1%Johnson554 | 52,221 | ||
| R | 34.7%Obama18,372 | 63.2%McCain33,417 | 2.1%Nader1,126 | 52,915 | ||
| R | 34.0%Kerry17,606 | 65.7%Bush33,992 | 0.3%Other162 | 51,760 | ||
| R | 36.4%Gore15,584 | 60.8%Bush26,037 | 2.1%Nader879 | 42,841 | ||
| R | 38.8%Clinton15,540 | 48.8%Dole19,509 | 11.5%Perot4,599 | 40,005 | ||
| R | 29.2%Clinton12,547 | 45.9%Bush19,741 | 24.5%Perot10,544 | 43,006 | ||
| R | 30.6%Dukakis11,138 | 68.4%Bush24,915 | 1.0%Fulani381 | 36,434 | ||
| R | 26.7%Mondale9,695 | 72.4%Reagan26,300 | 0.9%Serrette320 | 36,315 | ||
| R | 36.0%Carter12,893 | 55.7%Reagan19,928 | 8.3%Anderson2,987 | 35,808 | ||
| R | 40.3%Carter13,074 | 57.6%Ford18,686 | 2.0%McCarthy653 | 32,413 | ||
| R | 29.4%McGovern9,121 | 68.4%Nixon21,226 | 2.1%Schmitz665 | 31,012 | ||
| R | 39.4%Humphrey13,228 | 50.6%Nixon16,997 | 10.0%Wallace3,352 | 33,577 | ||
| D | 59.9%Johnson19,379 | 40.1%Goldwater12,985 | 0.0% | 32,364 | ||
| R | 34.7%Kennedy11,770 | 65.3%Nixon22,151 | 0.0% | 33,921 | ||
| R | 31.4%Stevenson9,229 | 68.6%Eisenhower20,135 | 0.0% | 29,364 | ||
| R | 34.9%Stevenson10,462 | 65.1%Eisenhower19,525 | 0.0% | 29,987 | ||
| R | 43.3%Truman10,066 | 56.3%Dewey13,100 | 0.4%Thurmond89 | 23,255 | ||
| R | 41.5%Roosevelt10,476 | 58.5%Dewey14,751 | 0.0% | 25,227 | ||
| R | 44.5%Roosevelt11,799 | 55.5%Willkie14,725 | 0.0% | 26,524 | ||
| D | 50.4%Roosevelt12,754 | 44.9%Landon11,343 | 4.7%Lemke1,189 | 25,286 | ||
| R | 45.6%Roosevelt10,677 | 51.9%Hoover12,157 | 2.4%Thomas568 | 23,402 | ||
| R | 26.6%Smith5,867 | 72.8%Hoover16,063 | 0.6%Thomas136 | 22,066 | ||
| R | 28.0%Davis5,296 | 62.7%Coolidge11,851 | 9.3%La Follette1,754 | 18,901 | ||
| R | 37.1%Cox8,076 | 60.3%Harding13,122 | 2.6%Debs572 | 21,770 | ||
| R | 47.0%Wilson5,582 | 48.6%Hughes5,772 | 4.4%Benson519 | 11,873 | ||
| D | 38.7%Wilson4,310 | 32.5%Taft3,615 | 28.8%Roosevelt3,200 | 11,125 | ||
| R | 44.0%Bryan5,369 | 53.7%Taft6,558 | 2.4%Debs288 | 12,215 | ||
| R | 33.5%Parker3,646 | 62.4%Roosevelt6,793 | 4.0%Debs440 | 10,879 | ||
| R | 44.6%Bryan5,127 | 53.9%McKinley6,197 | 1.6%Woolley181 | 11,505 | ||
| R | 46.8%Bryan5,387 | 52.6%McKinley6,051 | 0.6%Palmer65 | 11,503 | ||
| R | 42.8%Cleveland4,271 | 51.3%Harrison5,110 | 5.9%Weaver588 | 9,969 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −8.4% |
| 1896 | −5.8% |
| 1900 | −9.3% |
| 1904 | −28.9% |
| 1908 | −9.7% |
| 1912 | +6.2% |
| 1916 | −1.6% |
| 1920 | −23.2% |
| 1924 | −34.7% |
| 1928 | −46.2% |
| 1932 | −6.3% |
| 1936 | +5.6% |
| 1940 | −11.0% |
| 1944 | −16.9% |
| 1948 | −13.0% |
| 1952 | −30.2% |
| 1956 | −37.1% |
| 1960 | −30.6% |
| 1964 | +19.8% |
| 1968 | −11.2% |
| 1972 | −39.0% |
| 1976 | −17.3% |
| 1980 | −19.6% |
| 1984 | −45.7% |
| 1988 | −37.8% |
| 1992 | −16.7% |
| 1996 | −9.9% |
| 2000 | −24.4% |
| 2004 | −31.7% |
| 2008 | −28.4% |
| 2012 | −34.9% |
| 2016 | −44.7% |
| 2020 | −44.3% |
| 2024 | −45.1% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 72,257 |
| 2018 | 74,338 |
| 2020 | 75,470 |
| 2022 | 76,283 |
| 2024 | 78,731 |
Source: U.S. Election Assistance Commission (EAVS)
Miami County, anchored by Troy and Piqua in the Great Miami River corridor, has delivered Republican presidential nominees by landslide margins for decades, reflecting a predominantly white, small-city electorate with deep roots in manufacturing and agriculture.
Across the recorded series it reached a Democratic high of 19.8 points in 1964 and a Republican high of 46.2 points in 1928. Between 2020 and 2024 the county moved 0.8 points toward the Republican candidate; the 2024 margin was 45.1 points.
A population of 110,296, a 90% non-Hispanic-white share, and a median household income of $76,817 describe the county. The county's voting pattern over the last decade is most similar to that of Auglaize County and Anderson County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Miami County, Ohio. Akashic. https://akashic.app/county/39109/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Cities & towns in Miami County
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Frequently asked questions
How did Miami County, Ohio vote in 2024?
In 2024, Miami County, Ohio voted Republican by 45.1 points (R+45.1), carried by the Republican candidate. Out of 59,188 votes cast, 15,969 went Democratic and 42,677 went Republican.
When did Miami County, Ohio last vote Democratic?
The most recent presidential election in which Miami County, Ohio voted Democratic was 1964.
How many people live in Miami County, Ohio?
Miami County, Ohio has a population of 110,296 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Miami County, Ohio?
Median household income in Miami County, Ohio is $76,817 — below the national median of $80,734. The Ohio state median is $71,389.
What is the political history of Miami County, Ohio?
Akashic tracks 38 presidential elections in Miami County, Ohio from 1876 to 2024. Of those, 3 went Democratic and 31 went Republican.