Hainesburg, New Jersey

Hainesburg, New Jersey
The former Hainesburg Inn
Hainesburg
Location in Warren County
Hainesburg
Location in New Jersey
Hainesburg
Location in the United States
Coordinates: 40°57′22″N 75°03′44″W / 40.9561°N 75.0621°W / 40.9561; -75.0621
Country United States
State New Jersey
CountyWarren
TownshipKnowlton
Named afterJohn Haines
Area
  Total
1.52 sq mi (3.95 km2)
  Land1.50 sq mi (3.89 km2)
  Water0.02 sq mi (0.05 km2)  0.84%
Elevation
318 ft (97 m)
Population
 (2020)
  Total
422
  Density280.77/sq mi (108.37/km2)
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (EDT)
Area code908
FIPS code34-28920
GNIS feature ID02583997

Hainesburg is an unincorporated community and census-designated place (CDP) located within Knowlton Township in Warren County, in the U.S. state of New Jersey. While the community has existed for over a century, the CDP was designated as part of the 2010 United States Census. As of the 2010 Census, the CDP's population was 91.