List of Cities in the 878 Area Code
Rochester - 878-201
Sharon - 878-202
Charleroi - 878-203
Sheakleyville - 878-204
Criders Corners - 878-208
Washington - 878-218
New Wilmington - 878-222
Uniontown - 878-228
Freeport - 878-258
Elderton - 878-266
Butler - 878-271
Greensburg - 878-295
New Kensington - 878-302
Rochester - 878-313
Wexford - 878-332
Ellwood City - 878-333
Kittanning - 878-422
Homer City - 878-444
WESTMORELAND CITY - 878-553
Enon Valley - 878-668
Derry - 878-777
Parkwood - 878-888
Pittsburgh - 878-999