Warren County, New Jersey Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 19th-largest in New Jersey
The population of Warren County, New Jersey is 110,238 as of the 2023 American Community Survey, making it the 19th-largest county in New Jersey. The median household income is $99,596, the median home value is $323,100, and the median age is 43.9.
The population of Warren County has grown 3.2% since 2010 (108,572 → 112,031), a +0.22% annualized rate.
110,238
Population
+0.22%
Annual growth
309
People / sq mi
$99,596
Median Income
$323,100
Median Home Value
Warren County covers 357 sq mi of land at 309.2 people per square mile.
About Warren County, NJ
Warren County is a county in New Jersey with a population of 110,238. It ranks #19 among counties in New Jersey by population. The median age is 43.9, older than the national median. The population is 49.7% male and 50.3% female.
The median household income in Warren County is $99,596, above the US median of $74,580. 5.6% of residents live below the federal poverty level. Home values sit at a median of $323,100, with monthly rent averaging $1,368. The homeownership rate of 74.3% is higher than the national rate of 64.8%.
Educational attainment in Warren County reflects 36.4% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 11.5% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 34.1 minutes each way.
Warren County Population History (2010-2024)
The county of Warren County had a population of 108,572 in 2010 and 112,031 in 2024, a 3.2% growth over 14 years. The peak was 112,031 in 2024. Average annual growth rate: 0.23%.
112,031
Population (2024)
108,572
Population (2010)
112,031
Peak (2024)
0.23%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 108,572 |
| 2011 | 108,154 |
| 2012 | 107,586 |
| 2013 | 106,933 |
| 2014 | 107,022 |
| 2015 | 106,787 |
| 2016 | 106,102 |
| 2017 | 105,761 |
| 2018 | 105,709 |
| 2019 | 105,455 |
| 2020 | 109,520 |
| 2021 | 110,464 |
| 2022 | 110,885 |
| 2023 | 111,344 |
| 2024 | 112,031 |
Race & Ethnicity
| White | 80.1% |
| Black or African American | 5.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
43.9
Median Age
50.3%
Female
49.7%
Male
19.0%
Age 65+
Age Distribution
Children (under 15): 15.6% · Seniors (65+): 19.0%
Income & Poverty
| Median household income | $99,596$-1,454 vs state |
| Mean household income | $117,781 |
| Per-capita income | $48,232 |
| Poverty rate | 5.6%-1.4% vs state |
| Unemployment rate | 3.7% |
| Employment-to-population | 62.8% |
Top Industries by Employment
The largest employment sector in Warren County is professional & business services, accounting for 24.4% of workers.
How residents commute
1.3%
Drive alone
2.2%
Carpool
77.0%
Public transit
11.5%
Work from home
34.1 min
Avg commute
Housing
$323,100$-104,500 vs state
Median home value
$1,368
Median rent
74.3%
Homeownership rate
46,675
Total housing units
96.3%
Occupied
3.7%
Vacant
25.7%
Renter-occupied
Social & access
95.3%
With health insurance
94.9%
With broadband internet
24.7%
Foreign-born
5.6%
Veterans (18+)
11.7%
With a disability
85.4%
Speak language other than English at home
Education
94.0%
High School+
36.4%
Bachelor's+
Largest cities in New Jersey
Other counties in New Jersey
Part of New Jersey
Metro areas in New Jersey
County rankings
Frequently Asked Questions
Warren County, New Jersey has a population of 110,238 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 19th-largest county in New Jersey. Population density is 309 people per square mile.
The population of Warren County has grown 3.2% since 2010 (108,572 → 112,031), a +0.22% annualized rate.
The median household income in Warren County, New Jersey is $99,596, with mean (average) household income of $117,781 and per-capita income of $48,232. 5.6% of residents live below the federal poverty level.
In Warren County, the largest racial and ethnic groups are White (80.1%), Black or African American (5.5%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Warren County, New Jersey is 43.9 years. Residents are 50.3% female and 49.7% male.
The median home value in Warren County is $323,100 and median monthly rent is $1,368. 74.3% of occupied housing units are owner-occupied. The county has 46,675 total housing units, 3.7% of which are vacant.
The largest employment sector in Warren County, New Jersey is professional, scientific, and management services, employing 24.4% of workers. The unemployment rate is 3.7%.
Newark is among the largest cities associated with Warren County, New Jersey, with a population of 307,188.
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Full rankings of New Jersey counties
Statewide data for New Jersey
Population, race, income, age, and trends across New Jersey
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.