Deepwater, MO has a population of 450 and is the 20,198th largest city in the United States. The population density is 531 per sq mi which is 514% higher than the Missouri average and 486% higher than the national average. The median age in Deepwater is 43 which is approximately 11% higher than the Missouri average of 38. In Deepwater, 61% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 73% of Deepwater residents were born in Missouri, 27% were born out of state, 0% were born outside of the United States and 0% were foreign born.