Pen Argyl, Pennsylvania, United States [Borough]; population was 3,492 in 1990; housing units was 1,438 in 1990; location is 40°52'N 75°15'W; land area is 1.39 square miles (889 acres); water area is 0.01 square miles (6 acres); FIPS code is 58696 [SourceCBP]