Below is a list of Grahamsville NY zip codes. For your research we have also included Grahamsville Area Code, Time Zone, UTC and the local Sullivan County FIPS Code. Each Grahamsville New York zip code has a center Longitude / Latitude point (the Grahamsville center is -74.544502258301 / 41.846199035645). For your convenience we have also indicated if that zip code in Grahamsville observes Daylight Savings time.