| Challenge | |
| 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: | Yuba County |
| Coordinates: | 39.4875°N -121.2236°W |
| Elevation M: | 791 |
| Elevation Ft: | 2595 |
| Postal Code Type: | ZIP code |
| Postal Code: | 95925[1] |
| Area Code: | 530 |
Challenge (formerly Challenge Mills) is an unincorporated community in Yuba County, California. It is located on Dry Creek 30miles northeast of Marysville.
Challenge was once the terminus of a narrow-gauge logging railroad that hauled timber to the Beanville mill.[2]
A post office opened at Challenge in 1895.
According to the Köppen Climate Classification system, Challenge has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps.[3]