Related terms:
septa
rosemont
chester
democrat
township
bucks county
county
delaware county
schuylkill river
delaware river
census bureau
montgomery county
square miles
springfield township
school district
pennsylvania
philadelphia
median income
congressional district
united states census
Wikipedia sources:
Philadelphia
Philadelphia County, Pennsylvania
Montgomery County, Pennsylvania
List of counties in Pennsylvania
Delaware County, Pennsylvania
Context for words:
philadelphia
county
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