Today 18104, Allentown PA is count around 11 homes for sale at current average listing price of $619,264. Nearby neighborhoods of 18104 are Hidden Meadows, Allentown City, College Heights, Estates At Trexler P, None Available, Rose Garden, Springhouse Farms, Tannery Woods, Tremont Park, Trexler Park Estates. Most of 18104 homes are 4 bedrooms with 3 bathrooms.