Manton is a census-designated place (CDP) partially in Tehama County, California, United States. It is also in Shasta County. The population in the Tehama County portion was 347 at the 2010 census, down from 372 at the 2000 census.
A post office called Manton has been in operation since 1889. According to tradition, the town derives its name from "Man's Town" because a large share of the first settlers were males.
In August 2005, the town was overrun by a forest fire which destroyed several homes and forced the evacuation of the entire town. There were no injuries.
Manton is located at 40°25′8″N 121°51′49″W (40.419020, -121.863519).
According to the United States Census Bureau, the CDP has a total area of 17.7 square miles (46 km2), 99.85% of it land and 0.15% of it water.
This region experiences very hot and dry summers, with average monthly temperatures in July, August and September over 70 °F. According to the Köppen Climate Classification system, Manton has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
The 2010 United States Census reported that Manton had a population of 347. The population density was 19.6 people per square mile (7.6/km2). The racial makeup of Manton was 312 (89.9%) White, 0 (0.0%) African American, 20 (5.8%) Native American, 1 (0.3%) Asian, 0 (0.0%) Pacific Islander, 7 (2.0%) from other races, and 7 (2.0%) from two or more races.