Weldon is a census-designated place (CDP) in Kern County, California, United States. It sits at the southeast tip of Lake Isabella. Weldon is located 9 miles (14 km) east-southeast of Wofford Heights, at an elevation of 2,654 feet (809 m). The population was 2,642 at the 2010 census, up from 2,387 at the 2000 census.
Weldon is located at 35°39′57″N 118°17′25″W.
According to the United States Census Bureau, the CDP has a total area of 26.8 square miles (69 km2), over 99% of it land.
The Weldon post office opened in 1871. The name honors William B. Weldon, a cattle rancher. Camp Leonard, a temporary army camp, was established at Weldon in 1863.
The 1941 western film Doomed Caravan was partially filmed in Weldon. Other movies filmed here include Borderland (1937), In Old Mexico (1938) and Hidden Gold (1940).
At the 2010 census Weldon had a population of 2,642. The population density was 98.6 people per square mile (38.1/km2).