Below is a list of Costilla NM zip codes. For your research we have also included Costilla Area Code, Time Zone, UTC and the local Taos County FIPS Code. Each Costilla New Mexico zip code has a center Longitude / Latitude point (the Costilla center is -105.53199768066 / 36.978801727295). For your convenience we have also indicated if that zip code in Costilla observes Daylight Savings time.