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North Irwin

1. North Irwin, Pennsylvania, United States [Borough]; population was 956 in 1990; housing units was 405 in 1990; location is 40°20'N 79°43'W; land area is 0.21 square miles (132 acres); FIPS code is 55136 [SourceCBP]
2. North Irwin, Pennsylvania, United States [Populated Place] is in Westmoreland County; location is 40°20'15"N 79°42'49"W; elevation is 907 feet [SourceGSP]