Warren County, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 55th-largest in Pennsylvania
The population of Warren County, Pennsylvania is 38,174 as of the 2023 American Community Survey, making it the 55th-largest county in Pennsylvania. The median household income is $59,013, the median home value is $121,800, and the median age is 47.4.
The population of Warren County has declined 10.5% since 2010 (41,770 → 37,373), a -0.79% annualized rate.
38,174
Population
-0.79%
Annual growth
43
People / sq mi
$59,013
Median Income
$121,800
Median Home Value
Warren County covers 884 sq mi of land at 43.2 people per square mile.
About Warren County, PA
Age is the most distinctive thing about Warren County: a median age of 47.4, older than the national median. Warren County is a county in Pennsylvania with a population of 38,174.
The typical household here earns about $59,013, below the US median of $78,538. Poverty runs at 7.3%, below the national 12.4%. Property is affordable here, the median home worth $121,800, with typical rent around $756.
Roughly 19.5% of adults have a bachelor’s, below the national 35.0%. Just 5.0% of workers are home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
The age structure shapes everything downstream in Warren County — from housing demand to the mix of working-age earners reflected in the income figures above.
Warren County Population History (2010-2024)
The county of Warren County had a population of 41,770 in 2010 and 37,373 in 2024, a -10.5% growth over 14 years. The peak was 41,770 in 2010. Average annual growth rate: -0.79%.
37,373
Population (2024)
41,770
Population (2010)
41,770
Peak (2010)
-0.79%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,770 |
| 2011 | 41,512 |
| 2012 | 41,268 |
| 2013 | 40,963 |
| 2014 | 40,667 |
| 2015 | 40,346 |
| 2016 | 40,039 |
| 2017 | 39,682 |
| 2018 | 39,528 |
| 2019 | 39,171 |
| 2020 | 38,526 |
| 2021 | 38,184 |
| 2022 | 37,843 |
| 2023 | 37,672 |
| 2024 | 37,373 |
Race & Ethnicity
| White | 95.2% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.1% |
Age & Sex
47.4
Median Age
49.6%
Female
50.4%
Male
24.2%
Age 65+
Age Distribution
Children (under 15): 16.1% · Seniors (65+): 24.2%
Income & Poverty
| Median household income | $59,013$-17,068 vs state |
| Mean household income | $76,006 |
| Per-capita income | $33,333 |
| Poverty rate | 7.3%-0.8% vs state |
| Unemployment rate | 2.3% |
| Employment-to-population | 53.1% |
Top Industries by Employment
The largest employment sector in Warren County is professional & business services, accounting for 24.7% of workers.
How residents commute
0.8%
Drive alone
3.3%
Carpool
79.3%
Public transit
5.0%
Work from home
20.7 min
Avg commute
Housing
$121,800$-118,700 vs state
Median home value
$756
Median rent
78.0%
Homeownership rate
21,641
Total housing units
75.2%
Occupied
24.8%
Vacant
22.0%
Renter-occupied
Social & access
95.6%
With health insurance
90.9%
With broadband internet
19.5%
Foreign-born
11.0%
Veterans (18+)
15.8%
With a disability
96.8%
Speak language other than English at home
Education
93.9%
High School+
19.5%
Bachelor's+
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County rankings
Frequently Asked Questions
Warren County, Pennsylvania has a population of 38,174 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 55th-largest county in Pennsylvania. Population density is 43 people per square mile.
The population of Warren County has declined 10.5% since 2010 (41,770 → 37,373), a -0.79% annualized rate.
The median household income in Warren County, Pennsylvania is $59,013, with mean (average) household income of $76,006 and per-capita income of $33,333. 7.3% of residents live below the federal poverty level.
In Warren County, the largest racial and ethnic groups are White (95.2%), Black or African American (0.8%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Warren County, Pennsylvania is 47.4 years. Residents are 49.6% female and 50.4% male.
The median home value in Warren County is $121,800 and median monthly rent is $756. 78.0% of occupied housing units are owner-occupied. The county has 21,641 total housing units, 24.8% of which are vacant.
The largest employment sector in Warren County, Pennsylvania is professional, scientific, and management services, employing 24.7% of workers. The unemployment rate is 2.3%.
Philadelphia is among the largest cities associated with Warren County, Pennsylvania, with a population of 1,582,432.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.