| Plainfield | |
| 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: | Yolo County |
| Coordinates: | 38.5908°N -121.7969°W |
| Elevation Ft: | 69 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 95695 |
| Area Code Type: | Area code |
| Area Code: | 530 |
Plainfield is an unincorporated community in Yolo County, California. It is located between Davis and Woodland in the central portion of the county. Plainfield's ZIP Code is 95695 and its area code 530. A post office was established in the community in 1873 but was discontinued in 1908. It lies at an elevation of .