Princeton Flag

Princeton

County:
Mercer County
County Seat:
No
Area (mi²):
17.946
State:
New Jersey

Princeton is a township located in Mercer County, New Jersey. Princeton has a 2026 population of 31,445. Princeton is currently growing at a rate of 2.66% annually and its population has increased by 2.66% since the most recent census, which recorded a population of 30,629 in 2020.

31.4K
Total Population
1,752
Density (mi²)
815 2.66%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)