Seigler Springs is an unincorporated community

Unincorporated area

In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...

 in Lake County

Lake County, California

Lake County is a county located in the north central portion of the U.S. state of California, north of the San Francisco Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the county and the largest natural lake wholly within California...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. It is located 1 mile (1.6 km) east of Seigler Mountain, 5 miles (8 km) south of Clear Lake and 20 miles (32 km) northeast of Healdsburg

Healdsburg, California

Healdsburg is a city located in Sonoma County, California, in the United States. As of the 2010 United States Census, the city had a population of 11,254...

, at an elevation of 2251 feet (686 m).

Thomas Seigler discovered the springs, and a resort grew up by the 1870s. The Seigler post office opened in 1904, closed in 1907, reopened in 1909, and closed for good in 1911. The Seigler Springs post office operated from 1915 to 1969.