Lincoln County is a county in eastern Central Oklahoma. As of the 2020 census, the population was 33,458. Its county seat is Chandler.

Chandler is a city in, and the county seat of, Lincoln County, Oklahoma, United States. and is part of the Oklahoma City Metropolitan Area. The population was 2,858 at the time of the 2020 census. Chandler is located northeast of Oklahoma City on SH-66 and I-44, and north of Shawnee on SH-18.