Below is a list of Greenfield Park NY zip codes. For your research we have also included Greenfield Park Area Code, Time Zone, UTC and the local Ulster County FIPS Code. Each Greenfield Park New York zip code has a center Longitude / Latitude point (the Greenfield Park center is -74.486099243164 / 41.726100921631). For your convenience we have also indicated if that zip code in Greenfield Park observes Daylight Savings time.