Clinton, MS has a population of 25,411 and is the 1,697th largest city in the United States. The population density is 607 per sq mi which is 886% higher than the Mississippi average and 570% higher than the national average. The median age in Clinton is 36 which is approximately 2% lower than the Mississippi average of 37. In Clinton, 56% of the population over 15 years of age are married, 91% speak English and 3% speak Spanish. 69% of Clinton residents were born in Mississippi, 24% were born out of state, 0% were born outside of the United States and 7% were foreign born.