Herriman, UT has a population of 29,176 and is the 1,467th largest city in the United States. The population density is 1,352 per sq mi which is 3920% higher than the Utah average and 1393% higher than the national average. The median age in Herriman is 23 which is approximately 23% lower than the Utah average of 30. In Herriman, 66% of the population over 15 years of age are married, 92% speak English and 6% speak Spanish. 71% of Herriman residents were born in Utah, 25% were born out of state, 1% were born outside of the United States and 3% were foreign born.