Below is a list of Wyandanch NY zip codes. For your research we have also included Wyandanch Area Code, Time Zone, UTC and the local Suffolk County FIPS Code. Each Wyandanch New York zip code has a center Longitude / Latitude point (the Wyandanch center is -73.381202697754 / 40.749401092529). For your convenience we have also indicated if that zip code in Wyandanch observes Daylight Savings time.