Below is a list of Westchester County NY zip codes. For your research we have also included Westchester County Area Code, Time Zone, UTC and the local County FIPS Code. Each Westchester County New York zip code has a center Longitude / Latitude point (the Westchester County center is -73.784301757812 / 41.109401702881). For your convenience we have also indicated if that zip code in Westchester County observes Daylight Savings time.