Colonia Flag

Colonia

County Seat:
No
Area (mi²):
4.03
State:
New Jersey

Colonia is a CDP located in Middlesex County, New Jersey. Colonia has a 2025 population of 18,778. Colonia is currently growing at a rate of 0.35% annually and its population has increased by 5.6% since the most recent census, which recorded a population of 17,782 in 2020.

The average household income in Colonia is $151,367 with a poverty rate of 5.86%.The median age in Colonia is 43.3 years: 41.4 years for males, and 45.3 years for females.

18.8K
Total Population
4,660
Density (mi²)
66 0.35%
Growth

Colonia Population

Demographics

Economics and Income Statistics

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)