Monmouth Junction, New Jersey

Monmouth Junction, New Jersey
Center of Monmouth Junction
Map of Monmouth Junction CDP in Middlesex County. Inset: Location of Middlesex County in New Jersey.
Monmouth Junction
Location in Middlesex County
Monmouth Junction
Location in New Jersey
Monmouth Junction
Location in the United States
Coordinates: 40°22′49″N 74°32′36″W / 40.380345°N 74.543237°W / 40.380345; -74.543237
Country United States
State New Jersey
CountyMiddlesex
TownshipSouth Brunswick
Area
  Total
4.41 sq mi (11.41 km2)
  Land4.38 sq mi (11.35 km2)
  Water0.03 sq mi (0.07 km2)  1.03%
Elevation
79 ft (24 m)
Population
 (2020)
  Total
8,895
  Density2,030.4/sq mi (783.9/km2)
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Code
08852
Area code(s)732/848
FIPS code34-47190
GNIS feature ID2389493

Monmouth Junction is an unincorporated community and census designated place (CDP) in South Brunswick Township, Middlesex County, New Jersey, United States. As of the 2020 census, the CDP's population was 8,895, up 208% from its population of 2,887 in 2010.