Today 18104, Allentown PA is count around 10 homes for sale at current average listing price of $570,670. Nearby neighborhoods of 18104 are Hidden Meadows, Allentown, Allentown City, College Heights, Estates At Trexler P, None Available, Rose Garden, Tannery Woods, Tremont Park. Most of 18104 homes are 4 bedrooms with 3 bathrooms.