Below is a list of Hewlett NY zip codes. For your research we have also included Hewlett Area Code, Time Zone, UTC and the local Nassau County FIPS Code. Each Hewlett New York zip code has a center Longitude / Latitude point (the Hewlett center is -73.698097229004 / 40.641399383545). For your convenience we have also indicated if that zip code in Hewlett observes Daylight Savings time.