Below is a list of Hornbrook CA zip codes. For your research we have also included Hornbrook Area Code, Time Zone, UTC and the local Siskiyou County FIPS Code. Each Hornbrook California zip code has a center Longitude / Latitude point (the Hornbrook center is -122.55799865723 / 41.909099578857). For your convenience we have also indicated if that zip code in Hornbrook observes Daylight Savings time.