Important places
Farrell (1)Washington (2,457)
Counties
Mercer (5)District of Columbia (2,673)
Regions
District of Columbia (2,676)Pennsylvania (4,458)
Countries
United States (64,950)Other geographical areas
Piedmont (USA) (1,063)Appalachian Mountains (1,111)
Central Lowlands (North America) (1,334)