Oldham County, Kentucky: Realigning Affluent Suburb county. In 2024, voted R+23%. Democratic peak: D+51 in 1912.
Key facts
- 2024 presidential margin
- R+23MIT Election Lab
- Political typology
- Realigning Affluent SuburbAkashic typology
- Population
- 69,2572024 5-year
- Median household income
- $122,4972024 5-year
- White (non-Hispanic)
- 86.6%2024 5-year
- Black
- 2.9%2024 5-year
- Hispanic / Latino
- 5.0%2024 5-year
- Peak Democratic margin
- D+51 in 1912MIT Election Lab
- Peak Republican margin
- R+48 in 1984MIT Election Lab
- Most similar
- Cherokee County, GA · similarity 1.00
2024 results by precinct
2024 precinct map of Oldham CountyPrecinct-level 2024 presidential results for Oldham 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 | +33.4% |
| 1896 | +14.9% |
| 1900 | +22.6% |
| 1904 | +30.9% |
| 1908 | +32.8% |
| 1912 | +51.2% |
| 1916 | +38.4% |
| 1920 | +44.5% |
| 1924 | +36.2% |
| 1928 | −8.3% |
| 1932 | +44.3% |
| 1936 | +45.1% |
| 1940 | +40.0% |
| 1944 | +30.1% |
| 1948 | +23.6% |
| 1952 | +0.3% |
| 1956 | −9.2% |
| 1960 | −6.2% |
| 1964 | +35.2% |
| 1968 | −6.4% |
| 1972 | −38.7% |
| 1976 | −13.2% |
| 1980 | −22.1% |
| 1984 | −47.8% |
| 1988 | −36.7% |
| 1992 | −16.9% |
| 1996 | −23.4% |
| 2000 | −36.2% |
| 2004 | −39.5% |
| 2008 | −30.7% |
| 2012 | −36.6% |
| 2016 | −31.1% |
| 2020 | −21.5% |
| 2024 | −22.6% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 14,402 | 23,025 | 38,210 | ||
| R | 14,505 | 22,654 | 37,976 | ||
| R | 10,268 | 20,469 | 32,853 | ||
| R | 9,240 | 20,179 | 29,884 | ||
| R | 10,000 | 18,997 | 29,316 | ||
| R | 8,080 | 18,801 | 27,132 | ||
| R | 6,236 | 13,580 | 20,268 | ||
| R | 6,202 | 10,477 | 18,301 | ||
| R | 5,457 | 8,263 | 16,639 | ||
| R | 4,025 | 8,716 | 12,792 | ||
| R | 2,857 | 8,112 | 10,991 | ||
| R | 3,487 | 5,586 | 9,510 | ||
| R | 2,819 | 3,695 | 6,631 | ||
| R | 1,311 | 3,041 | 4,472 | ||
| R | 1,399 | 1,655 | 3,993 | ||
| D | 2,622 | 1,256 | 3,884 | ||
| R | 1,960 | 2,221 | 4,181 | ||
| R | 1,769 | 2,128 | 3,909 | ||
| D | 1,735 | 1,723 | 3,476 | ||
| D | 1,703 | 1,036 | 2,829 | ||
| D | 1,908 | 1,021 | 2,947 | ||
| D | 1,983 | 848 | 2,841 | ||
| D | 2,020 | 760 | 2,794 | ||
| D | 2,319 | 888 | 3,233 | ||
| R | 1,359 | 1,604 | 2,969 | ||
| D | 1,954 | 906 | 2,895 | ||
| D | 2,655 | 1,014 | 3,684 | ||
| D | 1,455 | 642 | 2,116 | ||
| D | 1,159 | 261 | 1,754 | ||
| D | 1,259 | 625 | 1,933 | ||
| D | 882 | 452 | 1,390 | ||
| D | 1,062 | 667 | 1,751 | ||
| D | 946 | 691 | 1,707 | ||
| D | 783 | 365 | 1,250 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
21.9%
English
19.4%
Irish
13.6%
American
8.4%
Italian
3.5%
Scottish
2.9%
French
2.6%
African American
2.3%
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: 39.9 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
$122,497
Oldham County ranks in the top 0.5% of US counties.
Oldham County$122,497
Kentucky$63,726
United States$80,734
Oldham 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
4.3%
Child poverty is below the national average.
Children under 183.7%
Working age (18–64)4.3%
Seniors (65+)6.5%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
94.0%
speak English only
Spanish3.1%
Other Indo-European1.6%
Asian & Pacific Islander0.9%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 63.2% of residents not counted as adherents by any reporting body.
Oldham County's rapid residential growth along the Louisville metro fringe has not diluted its Republican lean — the 2024 presidential margin held above 22 points despite an influx of suburban commuters.
Once reliably Republican — a margin of forty-eight points in 1984 at its widest — Oldham County has trended Democratic. Between 2020 and 2024 the county moved one point toward the Republican candidate; the 2024 margin was twenty-three points.
A median household income of $122,497 — among the higher at this geographic scale — and a population of 69,257 describe the county. The county's voting pattern over the last decade is most similar to that of Cherokee County and Cleveland 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.
Oldham County, Kentucky. Akashic. https://akashic.app/county/21185/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More realigning affluent suburb counties
Frequently asked questions
How did Oldham County, Kentucky vote in 2024?
In 2024, Oldham County, Kentucky voted Republican by 22.6 points (R+23), carried by the Republican candidate. Out of 38,210 votes cast, 14,402 went Democratic and 23,025 went Republican.
What is Oldham County, Kentucky's political typology?
Akashic places Oldham County, Kentucky 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 16 times, Republican 18 times, and other 0 times.
When did Oldham County, Kentucky last vote Democratic?
The most recent presidential election in which Oldham County, Kentucky voted Democratic was 1964.
How many people live in Oldham County, Kentucky?
Oldham County, Kentucky has a population of 69,257 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Oldham County, Kentucky?
Median household income in Oldham County, Kentucky is $122,497 — above the national median of $80,734. The Kentucky state median is $63,726.
What is the political history of Oldham County, Kentucky?
Akashic tracks 38 presidential elections in Oldham County, Kentucky from 1876 to 2024. Of those, 16 went Democratic and 18 went Republican. The county's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.