| Campo Seco | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | California#USA |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in California |
| Pushpin Image: | California Locator Map with US.PNG |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Calaveras County |
| Coordinates: | 38.2272°N -120.8533°W |
| Elevation M: | 172 |
| Elevation Ft: | 564 |
Campo Seco (Spanish for "Dry Field") is an unincorporated community in Calaveras County, California. It sits at an elevation of 564 feet (172 m) above sea level and is located at 38.2272°N -120.8533°W. The community is in ZIP code 95226 and area code 209.
Founded by Mexicans in 1849, the mining camp was quite cosmopolitan, with forty different nationalities of miners. The town was almost destroyed by a fire in 1854, but as the placers were still producing, much of the town was rebuilt. Most of the buildings that are still standing date from after the fire. The town also contains the largest living cork oak tree in California, which was planted in 1858.
The town today is registered as California Historical Landmark #257.
The first post office was established in 1854.
In the state legislature, Campo Seco is in,[1] and .[2] Federally, Campo Seco is in .[3]
According to the Köppen Climate Classification system, Campo Seco has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps.[4]