EntityQ1134243· pop 21· linked from 210 articlesChesterbrookSign in to savecensus designated place in Chester County, Pennsylvania, United StatesConnectionsUnited States Census BureauEntityEastern Time ZoneEntityTredyffrin TownshipEntityPennsylvaniaEntitytime zoneEntityPhiladelphiaEntitygeographic coordinate systemEntityInternational Standard Book NumberEntityDaylight saving timeConceptQ5390EntityUTC−04:00Entitytelephone numbering planEntitypoverty lineEntityChester CountyEntityunincorporated areaEntitycensus-designated place in the United StatesEntityWest ChesterEntityZIP codeEntitycounty seatEntityCoatesvilleEntityCategoriesCensus-designated places in Chester County, PennsylvaniaCensus-designated places in PennsylvaniaTredyffrin Township, Pennsylvania