Miami County, Ohio: Stable Rural Right county. In 2024, voted R+45%. Republican peak: R+46 in 1928.
Key facts
- 2024 presidential margin
- R+45MIT Election Lab
- Political typology
- Stable Rural RightAkashic typology
- Population
- 110,2962024 5-year
- Median household income
- $76,8172024 5-year
- White (non-Hispanic)
- 90.4%2024 5-year
- Black
- 2.0%2024 5-year
- Hispanic / Latino
- 2.1%2024 5-year
- Peak Democratic margin
- D+20 in 1964MIT Election Lab
- Peak Republican margin
- R+46 in 1928MIT Election Lab
- Most similar
- Auglaize County, OH · similarity 1.00
2024 results by precinct
2024 precinct map of Miami CountyPrecinct-level 2024 presidential results for Miami 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 | −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 | −44.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 15,969 | 42,677 | 59,438 | ||
| R | 15,663 | 41,371 | 57,972 | ||
| R | 13,120 | 37,079 | 53,567 | ||
| R | 16,383 | 34,606 | 52,221 | ||
| R | 18,372 | 33,417 | 52,915 | ||
| R | 17,606 | 33,992 | 51,760 | ||
| R | 15,584 | 26,037 | 42,841 | ||
| R | 15,540 | 19,509 | 40,005 | ||
| R | 12,547 | 19,741 | 43,006 | ||
| R | 11,138 | 24,915 | 36,434 | ||
| R | 9,695 | 26,300 | 36,315 | ||
| R | 12,893 | 19,928 | 35,808 | ||
| R | 13,074 | 18,686 | 32,413 | ||
| R | 9,121 | 21,226 | 31,012 | ||
| R | 13,228 | 16,997 | 33,577 | ||
| D | 19,379 | 12,985 | 32,364 | ||
| R | 11,770 | 22,151 | 33,921 | ||
| R | 9,229 | 20,135 | 29,364 | ||
| R | 10,462 | 19,525 | 29,987 | ||
| R | 10,066 | 13,100 | 23,255 | ||
| R | 10,476 | 14,751 | 25,227 | ||
| R | 11,799 | 14,725 | 26,524 | ||
| D | 12,754 | 11,343 | 25,286 | ||
| R | 10,677 | 12,157 | 23,402 | ||
| R | 5,867 | 16,063 | 22,066 | ||
| R | 5,296 | 11,851 | 18,901 | ||
| R | 8,076 | 13,122 | 21,770 | ||
| R | 5,582 | 5,772 | 11,873 | ||
| D | 4,310 | 3,615 | 11,125 | ||
| R | 5,369 | 6,558 | 12,215 | ||
| R | 3,646 | 6,793 | 10,879 | ||
| R | 5,127 | 6,197 | 11,505 | ||
| R | 5,387 | 6,051 | 11,503 | ||
| R | 4,271 | 5,110 | 9,969 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
27.9%
English
13.4%
Irish
12.1%
American
7.7%
French
3.0%
Italian
2.9%
Scottish
1.5%
African American
1.6%
Multiple ancestry combinations reported; no single grouping above 1%.
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: 41.3 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
$76,817
Miami County ranks in the top 25% of US counties.
Miami County$76,817
Ohio$71,389
United States$80,734
Miami County ranks in the top 25% 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
9.4%
Child poverty is below the national average.
Children under 1810.9%
Working age (18–64)9.0%
Seniors (65+)7.9%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
96.7%
speak English only
Asian & Pacific Islander1.4%
Other Indo-European1.1%
Spanish0.7%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 63.9% of residents not counted as adherents by any reporting body.
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.
The Republican margin here reached forty-six points in 1928. Between 2020 and 2024 the county moved one point toward the Republican candidate; the 2024 margin was forty-five 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.
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.
Miami County, Ohio. Akashic. https://akashic.app/county/39109/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More stable rural right counties
Frequently asked questions
How did Miami County, Ohio vote in 2024?
In 2024, Miami County, Ohio voted Republican by 44.9 points (R+45), carried by the Republican candidate. Out of 59,438 votes cast, 15,969 went Democratic and 42,677 went Republican.
What is Miami County, Ohio's political typology?
Akashic places Miami County, Ohio 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 3 times, Republican 31 times, and other 0 times.
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. The county's typology — "Stable Rural Right" — captures where that record, its demographics, and its recent swing place it among American communities.