Joaquin is a city in northeastern Shelby County, Texas, United States. The population was 925 at the 2000 census. It is located on U.S. Highway 84 and the tracks of the Southern Pacific Railroad.
Joaquin is located at 31°57′56″N 94°2′54″W / 31.96556°N 94.04833°W / 31.96556; -94.04833 (31.965511, -94.048316).
According to the United States Census Bureau, the city has a total area of 2.3 square miles (6.0 km²), of which, 2.3 square miles (6.0 km²) of it is land and 0.43% is water.