Below is a list of Rio Grande County CO zip codes. For your research we have also included Rio Grande County Area Code, Time Zone, UTC and the local County FIPS Code. Each Rio Grande County Colorado zip code has a center Longitude / Latitude point (the Rio Grande County center is -106.32399749756 / 37.605899810791). For your convenience we have also indicated if that zip code in Rio Grande County observes Daylight Savings time.