Houston, MS has a population of 3,547 and is the 7,982nd largest city in the United States. The population density is 481 per sq mi which is 680% higher than the Mississippi average and 431% higher than the national average. The median age in Houston is 32 which is approximately 13% lower than the Mississippi average of 37. In Houston, 46% of the population over 15 years of age are married, 84% speak English and 14% speak Spanish. 83% of Houston residents were born in Mississippi, 6% were born out of state, 0% were born outside of the United States and 11% were foreign born.