Federal Government in West Mifflin, PA Internal Revenue Service3075 Clairton RdWest Mifflin, PA, 151234126509305Air Force RecruitingArmed Forces RecruitingArmyFederal FirearmsGovernmentInvestigationsIrs OfficeMarineUsda Rural Development US Airway Facilities Sector8282 Allegheny County AirportWest Mifflin, PA, 151224124618825Federal FirearmsGovernmentInvestigationsUnited States Postal Service Sort FacilityUsda Rural Development Show MoreSee AlsoArmed Forces Recruiting