Below is a list of Larchmont NY zip codes. For your research we have also included Larchmont Area Code, Time Zone, UTC and the local Westchester County FIPS Code. Each Larchmont New York zip code has a center Longitude / Latitude point (the Larchmont center is -73.750801086426 / 40.929500579834). For your convenience we have also indicated if that zip code in Larchmont observes Daylight Savings time.