EntityQ1182438· pop 28· linked from 222 articlesHeidelbergSign in to saveSuburb south-west of Pittsburgh in Allegheny County, Pennsylvania, USA, population 1244ConnectionsUnited States Census BureauEntityRoss TownshipEntityHarmar TownshipEntityPennsylvaniaEntitytime zoneEntitygeographic coordinate systemEntityPittsburghEntityHeidelbergEntityRepublican Party (United States)ConceptDemocratic Party (United States)ConceptDaylight saving timeConceptQ5390EntityUTC−04:00Entitytelephone numbering planEntityAllegheny CountyEntityEastern Time ZoneEntityunincorporated areaEntitycensus-designated place in the United StatesEntityMcKeesportEntityZIP codeEntityCategoriesBoroughs in Allegheny County, PennsylvaniaPopulated places in the United States established in 1893