8. 17584, Willow Street, PA Zip Code Map - MapQuest
Link: https://www.mapquest.com/us/pennsylvania/17584-pa-286274069
Description: WEBZip code 17584 is located mostly in Lancaster County, PA. This postal code encompasses addresses in the city of Willow Street, PA. Find directions to 17584, browse local businesses, landmarks, get current traffic estimates, road conditions, and more.