The locality withholding from box 19 of Form W-2 does not transfer to the Pennsylvania return. The locality withholding would only transfer to your federal return, Schedule A, Line 5, for itemized deductions.
If you have more than two local withholding amounts, you can combine the amounts of your locality withholdings and enter that amount on the W-2 in box 19, and then select Pennsylvania for the local name in box 20.
TaxAct® does not support the Pennsylvania local tax return, which is separate from the Pennsylvania state return.