[1] The community is at the point where three states meet: Texas, Arkansas, and Louisiana.

[2] The Louisiana side of Three States is part of the Shreveport – Bossier City metropolitan area, while the Arkansas side is part of the Texarkana metropolitan area.

County maps from the next decade showed homes and businesses scattered along the highway.

[2] Three States is located on Texas State Highway 77, 9 mi (14 km) southeast of Atlanta on the eastern border of Cass County, the northwestern border of Caddo Parish in Louisiana, and the southwestern corner of Miller County in Arkansas.

[2] Kids who live on the Texas side of the community attend the Atlanta Independent School District, the Louisiana side is in the Caddo Parish School District, and the Arkansas side is served by the Fouke School District.