Delaware County, Ohio: Realigning Affluent Suburb county. In 2024, voted R+7%. Republican peak: R+53 in 1984.
Key facts
- 2024 presidential margin
- R+7MIT Election Lab
- Political typology
- Realigning Affluent SuburbAkashic typology
- Population
- 226,8342024 5-year
- Median household income
- $133,5402024 5-year
- White (non-Hispanic)
- 79.9%2024 5-year
- Black
- 4.4%2024 5-year
- Hispanic / Latino
- 3.5%2024 5-year
- Peak Democratic margin
- D+5 in 1912MIT Election Lab
- Peak Republican margin
- R+53 in 1984MIT Election Lab
- Most similar
- Fayette County, GA · similarity 1.00
2024 results by precinct
2024 precinct map of Delaware CountyPrecinct-level 2024 presidential results for Delaware 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 | −2.4% |
| 1900 | −5.8% |
| 1904 | −22.0% |
| 1908 | −8.9% |
| 1912 | +4.8% |
| 1916 | +4.0% |
| 1920 | −18.9% |
| 1924 | −28.7% |
| 1928 | −36.4% |
| 1932 | −4.8% |
| 1936 | −2.2% |
| 1940 | −25.6% |
| 1944 | −33.6% |
| 1948 | −29.7% |
| 1952 | −43.2% |
| 1956 | −45.8% |
| 1960 | −36.2% |
| 1964 | −1.9% |
| 1968 | −31.8% |
| 1972 | −47.5% |
| 1976 | −26.3% |
| 1980 | −36.4% |
| 1984 | −53.1% |
| 1988 | −46.0% |
| 1992 | −24.3% |
| 1996 | −25.7% |
| 2000 | −35.2% |
| 2004 | −32.4% |
| 2008 | −19.6% |
| 2012 | −23.1% |
| 2016 | −15.6% |
| 2020 | −6.8% |
| 2024 | −6.5% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 61,657 | 70,448 | 134,383 | ||
| R | 57,735 | 66,356 | 126,070 | ||
| R | 40,872 | 57,568 | 106,996 | ||
| R | 37,292 | 60,194 | 99,254 | ||
| R | 36,653 | 54,778 | 92,581 | ||
| R | 27,048 | 53,143 | 80,456 | ||
| R | 17,134 | 36,639 | 55,403 | ||
| R | 13,463 | 24,123 | 41,415 | ||
| R | 9,263 | 18,225 | 36,873 | ||
| R | 7,590 | 20,693 | 28,498 | ||
| R | 5,773 | 19,050 | 24,989 | ||
| R | 6,417 | 14,740 | 22,861 | ||
| R | 7,058 | 12,285 | 19,853 | ||
| R | 4,452 | 12,950 | 17,886 | ||
| R | 4,056 | 9,029 | 15,644 | ||
| R | 8,080 | 8,395 | 16,475 | ||
| R | 5,334 | 11,391 | 16,725 | ||
| R | 3,997 | 10,739 | 14,736 | ||
| R | 4,239 | 10,682 | 14,921 | ||
| R | 4,371 | 8,089 | 12,506 | ||
| R | 4,569 | 9,186 | 13,755 | ||
| R | 5,666 | 9,570 | 15,236 | ||
| R | 7,045 | 7,364 | 14,709 | ||
| R | 6,196 | 6,833 | 13,300 | ||
| R | 3,720 | 8,049 | 11,880 | ||
| R | 3,537 | 6,731 | 11,142 | ||
| R | 5,241 | 7,700 | 13,004 | ||
| D | 3,754 | 3,461 | 7,368 | ||
| D | 2,934 | 2,584 | 7,316 | ||
| R | 3,330 | 4,007 | 7,593 | ||
| R | 2,607 | 4,163 | 7,078 | ||
| R | 3,337 | 3,765 | 7,325 | ||
| R | 3,612 | 3,789 | 7,519 | ||
| R | 2,710 | 3,267 | 6,645 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
25.4%
English
14.7%
Irish
14.6%
Italian
6.7%
American
4.5%
Scottish
3.0%
Polish
2.9%
African American
3.5%
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: 40.1 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
$133,540
Delaware County ranks in the top 0.5% of US counties.
Delaware County$133,540
Ohio$71,389
United States$80,734
Delaware County ranks in the top 0.5% 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
4.7%
Child poverty is below the national average.
Children under 185.1%
Working age (18–64)4.5%
Seniors (65+)4.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
88.7%
speak English only
Asian & Pacific Islander4.4%
Other Indo-European4.0%
Spanish2.0%
Other languages0.9%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 56.9% of residents not counted as adherents by any reporting body.
Delaware County's rapid population growth, driven by Columbus metro spillover, has steadily compressed what were once double-digit Republican presidential margins, making it a bellwether for how exurban Ohio continues to shift.
Once reliably Republican — a margin of fifty-three points in 1984 at its widest — Delaware County has trended Democratic. The 2024 margin was seven points.
A median household income of $133,540 — among the higher at this geographic scale — and a population of 226,834 describe the county. The county's voting pattern over the last decade is most similar to that of Fayette County and York 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.
Delaware County, Ohio. Akashic. https://akashic.app/county/39041/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Delaware County, Ohio vote in 2024?
In 2024, Delaware County, Ohio voted Republican by 6.5 points (R+7), carried by the Republican candidate. Out of 134,383 votes cast, 61,657 went Democratic and 70,448 went Republican.
What is Delaware County, Ohio's political typology?
Akashic places Delaware County, Ohio in the "Realigning Affluent Suburb" typology — College-educated, affluent suburbs — the one bloc moving toward the Democratic Party. 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 2 times, Republican 32 times, and other 0 times.
When did Delaware County, Ohio last vote Democratic?
The most recent presidential election in which Delaware County, Ohio voted Democratic was 1916.
How many people live in Delaware County, Ohio?
Delaware County, Ohio has a population of 226,834 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Delaware County, Ohio?
Median household income in Delaware County, Ohio is $133,540 — above the national median of $80,734. The Ohio state median is $71,389.
What is the political history of Delaware County, Ohio?
Akashic tracks 38 presidential elections in Delaware County, Ohio from 1876 to 2024. Of those, 2 went Democratic and 32 went Republican. The county's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.