Below is a list of Calhan CO zip codes. For your research we have also included Calhan Area Code, Time Zone, UTC and the local El Paso County FIPS Code. Each Calhan Colorado zip code has a center Longitude / Latitude point (the Calhan center is -104.29599761963 / 39.035999298096). For your convenience we have also indicated if that zip code in Calhan observes Daylight Savings time.