Hayti Heights, MO has a population of 578 and is the 18,666th largest city in the United States. The population density is 589 per sq mi which is 582% higher than the Missouri average and 551% higher than the national average. The median age in Hayti Heights is 23 which is approximately 40% lower than the Missouri average of 38. In Hayti Heights, 24% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 75% of Hayti Heights residents were born in Missouri, 25% were born out of state, 0% were born outside of the United States and 0% were foreign born.