About Winchester CDP, California
Winchester is a census-designated place (CDP) in Riverside County, California, United States. The population was 2,585 at the 2010 census, up from 2,265 at the 2000 census.
Winchester sits at an elevation of 1,438 feet (438 m). It is located 10 miles (16 km) east-northeast of Hemet, at the junction of State Route 79 and State Route371.
According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11.1 km2), all of it land.