Anderson County is a county in the U.S. state of Texas. Located within East Texas, its county seat is Palestine. As of the 2020 United States census, the population of Anderson County was 57,922. Anderson County comprises the Palestine micropolitan statistical area. Anderson County was organized in 1846, and was named after Kenneth Lewis Anderson (1805-1845), the last vice president of the Republic of Texas.

East Texas is a broadly defined cultural, geographic, and ecological region in the eastern part of the U.S. state of Texas that comprises most of 41 counties. It is primarily divided into Northeast and Southeast Texas. Most of the region consists of the Piney Woods ecoregion. East Texas can sometimes be defined only as the Piney Woods. At the fringes, towards Central Texas, the forests expand outward toward sparser trees and eventually into open plains.