It depends.  DC does not tax nonresidents.  If DC tax was not taken out of your paycheck, you do not need to file a DC return.  If it was withheld, you would file a DC reciprocal return to have these mistaken withholdings returned to you.  You will only need to file a Virginia resident return.  (Your residency HQ is not a factor on your tax return.  Even if it did, PA and VA also have a reciprocal agreement that you only pay taxes to your resident state, VA.)