Yoakum is a city in DeWitt and Lavaca Counties in the U.S. state of Texas. The population was 5,731 at the 2000 census. According to the United States Census Bureau, the city has a total area of 4.6square miles (11.8Square kilometers), of which, 4.6squaremiles (11.8Square kilometers) of it is land and 0.22% is water. As of the census of 2000, there were 5,731 people, 2,156 households, and 1,515 families residing in the city. The population density was 1,256.2 people per square mile (485.3Square kilometers). There were 2,529 housing units at an average density of 554.3 per square mile (214.1Square kilometers).