Below is a list of Modoc County CA zip codes. For your research we have also included Modoc County Area Code, Time Zone, UTC and the local County FIPS Code. Each Modoc County California zip code has a center Longitude / Latitude point (the Modoc County center is -120.50499725342 / 41.488300323486). For your convenience we have also indicated if that zip code in Modoc County observes Daylight Savings time.