Kaysville, UT has a population of 29,799 and is the 1,437th largest city in the United States. The population density is 2,838 per sq mi which is 8335% higher than the Utah average and 3032% higher than the national average. The median age in Kaysville is 29 which is approximately 5% lower than the Utah average of 30. In Kaysville, 69% of the population over 15 years of age are married, 94% speak English and 2% speak Spanish. 73% of Kaysville residents were born in Utah, 24% were born out of state, 1% were born outside of the United States and 2% were foreign born.