Warren County
Warren County is a county located in the U.S. state of New Jersey. According to the 2020 census, the county was the state's 19th-most populous county, with a population of 109,632, its highest decennial count ever and an increase of 940 (+0.9%) from the 2010 census count of 108,692, which in turn reflected an increase of 6,255 (+6.1%) from 102,437 counted at the 2000 census. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 112,953, an increase of 3,321 (+3.0%) from the 2020 decennial census. The county is part of the North Jersey region of the state.
Governance bodies
Organizations on the platform
No one is tracking Warren County on The Civic Record yet.
Documents, meetings, and matters will appear here once an organization claims this jurisdiction.
Sign up to start tracking it.
Cities and towns 5
Townships 17
- Township of Allamuchy pop. 5,423
- Township of Blairstown pop. 5,736
- Township of Franklin pop. 2,976
- Township of Frelinghuysen pop. 2,222
- Township of Greenwich pop. 5,472
- Township of Hardwick pop. 1,609
- Township of Harmony pop. 2,516
- Township of Hope pop. 1,832
- Township of Independence pop. 5,481
- Township of Knowlton pop. 2,904
- Township of Liberty pop. 2,680
- Township of Lopatcong pop. 9,412
- Township of Mansfield pop. 7,811
- Township of Oxford pop. 2,447
- Township of Pohatcong pop. 3,254
- Township of Washington pop. 6,508
- Township of White pop. 4,630
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 208755
- FIPS state
- 34
- FIPS county
- 041
- FIPS place
- 99041
- Census record name
- COUNTY OF WARREN
- Mailing address
- 165 COUNTY ROAD 519, BELVIDERE 07823