Clinton, UT has a population of 21,210 and is the 2,051st largest city in the United States. The population density is 3,576 per sq mi which is 10530% higher than the Utah average and 3847% higher than the national average. The median age in Clinton is 30 which is approximately equal to the Utah average of 30. In Clinton, 66% of the population over 15 years of age are married, 93% speak English and 5% speak Spanish. 70% of Clinton residents were born in Utah, 25% were born out of state, 1% were born outside of the United States and 4% were foreign born.