Warren County Flag

Warren County

State:
New Jersey
County Seat:

Warren County's estimated 2026 population is 113,405 with a growth rate of 0.61% in the past year according to the most recent United States census data. Warren County is the 19th largest county in New Jersey. The 2010 population was 108,572 and has seen a growth of 4.45% since that time.

113,405
Total Population
318
Population Density (mi²)
19
Population Rank (State)
687 0.61%
Annual Population Growth

Warren County Population

Demographics

Economics and Income Statistics