Cedar County is a county located in the southwest portion of the U.S. state of Missouri. As of the 2020 census, the population was 14,188. Its county seat is Stockton. The county was founded February 14, 1845, and named after Cedar Creek, a tributary of the Sac River, which in turn is named from the Eastern red cedar, a common tree of the area.

Stockton is a city in Cedar County, Missouri, United States. The population was 1,683 at the 2020 census. It is the county seat of Cedar County.