Fullerton, Pennsylvania

Fullerton, Pennsylvania
Location of Fullerton in Lehigh County, Pennsylvania
Fullerton
Location of Fullerton in Pennsylvania
Fullerton
Location in the United States
Coordinates: 40°37′55″N 75°28′22″W / 40.63194°N 75.47278°W / 40.63194; -75.47278
Country United States
State Pennsylvania
CountyLehigh
TownshipWhitehall
Area
3.75 sq mi (9.72 km2)
 • Land3.67 sq mi (9.50 km2)
 • Water0.081 sq mi (0.21 km2)
Elevation
375 ft (114 m)
Population
 (2020)
16,588
 • Density4,521/sq mi (1,745.4/km2)
 • Metro
865,310 (US: 68th)
Time zoneUTC-5 (EST)
 • Summer (DST)UTC-4 (EDT)
ZIP Code
18052
Area code610
FIPS code42-28144
GNIS feature ID1175328

Fullerton is an unincorporated area and census-designated place (CDP) in Whitehall Township in Lehigh County, Pennsylvania. The population of Fullerton was 16,588 as of the 2020 census.

Fullerton is a suburb of Allentown in the Lehigh Valley metropolitan area, which had a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census.