Below is a list of Lathrop CA zip codes. For your research we have also included Lathrop Area Code, Time Zone, UTC and the local San Joaquin County FIPS Code. Each Lathrop California zip code has a center Longitude / Latitude point (the Lathrop center is -121.31300354004 / 37.80590057373). For your convenience we have also indicated if that zip code in Lathrop observes Daylight Savings time.