Dutch Flat is a small unincorporated community and census-designated place (CDP) in Placer County, California, United States, about 30 miles (48 km) northeast of Auburn along Interstate 80. It was founded by German immigrants in 1851 and was once one of the richest gold mining locations in California. Dutch Flat is now registered as a California Historical Landmark. As of the 2020 census, Dutch Flat had a population of 183.