Oldham County, Kentucky Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 12th-largest in Kentucky
The population of Oldham County, Kentucky is 68,600 as of the 2023 American Community Survey, making it the 12th-largest county in Kentucky. The median household income is $121,491, the median home value is $375,000, and the median age is 39.7.
The population of Oldham County has grown 16.7% since 2010 (60,441 → 70,525), a +1.11% annualized rate.
68,600
Population
+1.11%
Annual growth
366
People / sq mi
$121,491
Median Income
$375,000
Median Home Value
Oldham County covers 187 sq mi of land at 366.3 people per square mile.
About Oldham County, KY
Homeownership is the standout figure in Oldham County: 88.1% of homes are owner-occupied, higher than the national rate. With 68,600 residents, Oldham County is a county in Kentucky. It ranks #12 among counties in Kentucky by population.
Households here are among the highest-earning of all US counties: median income is $121,491, above the US median of $78,538. Hardship is rare relative to US counties: a poverty rate of just 2.7%, below the national 12.4%. Real estate commands a premium here — a median home value of $375,000, with typical rent around $1,142.
Oldham County is among the best-educated US counties: 45.6% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Working from home is common here: 15.9% of workers do so, above the national 14.0%, and the average commute runs about 26 minutes each way.
The ownership rate anchors the housing story in Oldham County, and tends to move with the age structure and home-value figures above.
Oldham County Population History (2010-2024)
The county of Oldham County had a population of 60,441 in 2010 and 70,525 in 2024, a 16.7% growth over 14 years. The peak was 70,525 in 2024. Average annual growth rate: 1.11%.
70,525
Population (2024)
60,441
Population (2010)
70,525
Peak (2024)
1.11%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 60,441 |
| 2011 | 60,782 |
| 2012 | 62,119 |
| 2013 | 63,078 |
| 2014 | 63,991 |
| 2015 | 64,586 |
| 2016 | 65,487 |
| 2017 | 66,606 |
| 2018 | 66,632 |
| 2019 | 66,818 |
| 2020 | 67,696 |
| 2021 | 68,251 |
| 2022 | 69,506 |
| 2023 | 70,308 |
| 2024 | 70,525 |
Race & Ethnicity
| White | 87.6% |
| Black or African American | 3.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
39.7
Median Age
47.6%
Female
52.4%
Male
14.0%
Age 65+
Age Distribution
Children (under 15): 20.2% · Seniors (65+): 14.0%
Income & Poverty
| Median household income | $121,491+$59,074 vs state |
| Mean household income | $159,042 |
| Per-capita income | $52,773 |
| Poverty rate | 2.7%-9.1% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 62.3% |
Top Industries by Employment
The largest employment sector in Oldham County is professional & business services, accounting for 25.5% of workers.
How residents commute
0.0%
Drive alone
0.8%
Carpool
74.8%
Public transit
15.9%
Work from home
26.1 min
Avg commute
Housing
$375,000+$182,700 vs state
Median home value
$1,142
Median rent
88.1%
Homeownership rate
23,512
Total housing units
95.5%
Occupied
4.5%
Vacant
11.9%
Renter-occupied
Social & access
97.3%
With health insurance
97.8%
With broadband internet
36.6%
Foreign-born
7.0%
Veterans (18+)
8.9%
With a disability
94.7%
Speak language other than English at home
Education
94.1%
High School+
45.6%
Bachelor's+
Largest cities in Kentucky
Other counties in Kentucky
Part of Kentucky
Metro areas in Kentucky
County rankings
Frequently Asked Questions
Oldham County, Kentucky has a population of 68,600 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 12th-largest county in Kentucky. Population density is 366 people per square mile.
The population of Oldham County has grown 16.7% since 2010 (60,441 → 70,525), a +1.11% annualized rate.
The median household income in Oldham County, Kentucky is $121,491, with mean (average) household income of $159,042 and per-capita income of $52,773. 2.7% of residents live below the federal poverty level.
In Oldham County, the largest racial and ethnic groups are White (87.6%), Black or African American (3.7%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Oldham County, Kentucky is 39.7 years. Residents are 47.6% female and 52.4% male.
The median home value in Oldham County is $375,000 and median monthly rent is $1,142. 88.1% of occupied housing units are owner-occupied. The county has 23,512 total housing units, 4.5% of which are vacant.
The largest employment sector in Oldham County, Kentucky is professional, scientific, and management services, employing 25.5% of workers. The unemployment rate is 2.2%.
Louisville/Jefferson County is among the largest cities associated with Oldham County, Kentucky, with a population of 627,210.
Oldham County, KY Climate
Oldham County, KY has an average annual temperature of 12.5°C (55°F) and receives about 1185 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.5°C
Avg Temp
1185
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 31° | 81 mm |
| February | 2° / 35° | 81 mm |
| March | 7° / 44° | 110 mm |
| April | 12° / 54° | 111 mm |
| May | 17° / 63° | 124 mm |
| June | 22° / 71° | 106 mm |
| July | 24° / 76° | 117 mm |
| August | 24° / 74° | 99 mm |
| September | 20° / 68° | 78 mm |
| October | 13° / 56° | 78 mm |
| November | 8° / 46° | 99 mm |
| December | 2° / 36° | 101 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Oldham County, KY
The most comfortable months to visit Oldham County, KY are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -5°C low). May is usually the wettest month.
Where to stay near Oldham County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.