Allentown, PA

ZIP code 18104 encompasses the city of Allentown in Pennsylvania. This area is known for its diverse range of attractions, including the Dorney Park & Wildwater Kingdom amusement park, the Lehigh Valley Zoo, and the Cedar Crest College campus. Residents and visitors alike can also enjoy shopping and dining at the Lehigh Valley Mall and explore the picturesque Trexler Nature Preserve.