Warren County, Kentucky Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 5th-largest in Kentucky
The population of Warren County, Kentucky is 137,549 as of the 2023 American Community Survey, making it the 5th-largest county in Kentucky. The median household income is $64,801, the median home value is $242,600, and the median age is 33.4.
The population of Warren County has grown 29.4% since 2010 (114,348 → 147,936), a +1.86% annualized rate.
137,549
Population
+1.86%
Annual growth
254
People / sq mi
$64,801
Median Income
$242,600
Median Home Value
Warren County covers 542 sq mi of land at 253.9 people per square mile.
About Warren County, KY
Homeownership is the standout figure in Warren County: 56.7% of homes are owner-occupied, lower than the national rate. With 137,549 residents, Warren County is a county in Kentucky. That makes it one of the ten largest counties in Kentucky in the country, at #5 by population.
Median household income is $64,801, below the US median of $78,538. About 10.7% of residents live below the federal poverty level, below the national 12.4%. A typical home is worth $242,600, with typical rent around $963.
About 33.4% of adults 25 and older have a bachelor’s degree, near the 35.0% national figure. Remote work is below the national 14.0% at 6.3%, and the average commute runs about 21 minutes each way.
Warren County Population History (2010-2024)
The county of Warren County had a population of 114,348 in 2010 and 147,936 in 2024, a 29.4% growth over 14 years. The peak was 147,936 in 2024. Average annual growth rate: 1.86%.
147,936
Population (2024)
114,348
Population (2010)
147,936
Peak (2024)
1.86%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 114,348 |
| 2011 | 115,889 |
| 2012 | 117,436 |
| 2013 | 119,640 |
| 2014 | 121,480 |
| 2015 | 124,224 |
| 2016 | 126,752 |
| 2017 | 129,232 |
| 2018 | 130,926 |
| 2019 | 132,759 |
| 2020 | 135,033 |
| 2021 | 137,191 |
| 2022 | 140,503 |
| 2023 | 143,929 |
| 2024 | 147,936 |
Race & Ethnicity
| White | 77.7% |
| Black or African American | 8.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.1% |
Age & Sex
33.4
Median Age
50.7%
Female
49.3%
Male
13.2%
Age 65+
Age Distribution
Children (under 15): 19.6% · Seniors (65+): 13.2%
Income & Poverty
| Median household income | $64,801+$2,384 vs state |
| Mean household income | $87,897 |
| Per-capita income | $34,999 |
| Poverty rate | 10.7%-1.1% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 63.7% |
Top Industries by Employment
The largest employment sector in Warren County is professional & business services, accounting for 23.8% of workers.
How residents commute
0.1%
Drive alone
2.9%
Carpool
78.8%
Public transit
6.3%
Work from home
20.8 min
Avg commute
Housing
$242,600+$50,300 vs state
Median home value
$963
Median rent
56.7%
Homeownership rate
58,563
Total housing units
92.6%
Occupied
7.4%
Vacant
43.3%
Renter-occupied
Social & access
93.0%
With health insurance
95.3%
With broadband internet
30.5%
Foreign-born
6.5%
Veterans (18+)
13.5%
With a disability
86.2%
Speak language other than English at home
Education
88.9%
High School+
33.4%
Bachelor's+
Largest cities in Kentucky
Other counties in Kentucky
Part of Kentucky
Metro areas in Kentucky
County rankings
Frequently Asked Questions
Warren County, Kentucky has a population of 137,549 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest county in Kentucky. Population density is 254 people per square mile.
The population of Warren County has grown 29.4% since 2010 (114,348 → 147,936), a +1.86% annualized rate.
The median household income in Warren County, Kentucky is $64,801, with mean (average) household income of $87,897 and per-capita income of $34,999. 10.7% of residents live below the federal poverty level.
In Warren County, the largest racial and ethnic groups are White (77.7%), Black or African American (8.6%), 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 Warren County, Kentucky is 33.4 years. Residents are 50.7% female and 49.3% male.
The median home value in Warren County is $242,600 and median monthly rent is $963. 56.7% of occupied housing units are owner-occupied. The county has 58,563 total housing units, 7.4% of which are vacant.
The largest employment sector in Warren County, Kentucky is professional, scientific, and management services, employing 23.8% of workers. The unemployment rate is 3.0%.
Louisville/Jefferson County is among the largest cities associated with Warren County, Kentucky, with a population of 627,210.
Warren County, KY Climate
Warren County, KY has an average annual temperature of 14.2°C (58°F) and receives about 1290 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
14.2°C
Avg Temp
1290
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 1° / 34° | 96 mm |
| February | 4° / 38° | 105 mm |
| March | 9° / 48° | 128 mm |
| April | 14° / 57° | 107 mm |
| May | 19° / 66° | 131 mm |
| June | 24° / 75° | 109 mm |
| July | 26° / 78° | 114 mm |
| August | 25° / 77° | 86 mm |
| September | 22° / 71° | 98 mm |
| October | 15° / 59° | 79 mm |
| November | 9° / 48° | 112 mm |
| December | 4° / 39° | 125 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 Warren County, KY
The most comfortable months to visit Warren County, KY are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -4°C low). May is usually the wettest month.
Where to stay near Warren County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.