Below is a list of Williston Park NY zip codes. For your research we have also included Williston Park Area Code, Time Zone, UTC and the local Nassau County FIPS Code. Each Williston Park New York zip code has a center Longitude / Latitude point (the Williston Park center is -73.644897460938 / 40.756401062012). For your convenience we have also indicated if that zip code in Williston Park observes Daylight Savings time.