East Norriton, Pennsylvania, United States [CDP]; population was 13,324 in 1990; housing units was 5,201 in 1990; location is 40°9'N 75°20'W; land area is 6.07 square miles (3,886 acres); water area is 0.01 square miles (4 acres); FIPS code is 21608 [SourceCBP]