Below is a list of Blocksburg CA zip codes. For your research we have also included Blocksburg Area Code, Time Zone, UTC and the local Humboldt County FIPS Code. Each Blocksburg California zip code has a center Longitude / Latitude point (the Blocksburg center is -123.63600158691 / 40.275699615479). For your convenience we have also indicated if that zip code in Blocksburg observes Daylight Savings time.