Below is a list of Los Osos CA zip codes. For your research we have also included Los Osos Area Code, Time Zone, UTC and the local San Luis Obispo County FIPS Code. Each Los Osos California zip code has a center Longitude / Latitude point (the Los Osos center is -120.83200073242 / 35.311100006104). For your convenience we have also indicated if that zip code in Los Osos observes Daylight Savings time.