Below is a list of Castleton NY zip codes. For your research we have also included Castleton Area Code, Time Zone, UTC and the local Rensselaer County FIPS Code. Each Castleton New York zip code has a center Longitude / Latitude point (the Castleton center is -73.709098815918 / 42.535400390625). For your convenience we have also indicated if that zip code in Castleton observes Daylight Savings time.