  washington township is a township in york county, pennsylvania, united states. the population was 2,673 at the 2010 census. ==history== the bridge in washington township and henry and elizabeth berkheimer farm are listed on the national register of historic places. ==geography== according to the united states census bureau, the township has a total area of , of which 0.04% is water. ==demographics== as of the census of 2000, there were 2,460 people, 890 households, and 696 families residing in the t
Populated_places_established_in_1738 Townships_in_Pennsylvania Townships_in_York_County,_Pennsylvania