Pomona, MO has a population of 345 and is the 21,691st largest city in the United States. The population density is 97 per sq mi which is 12% higher than the Missouri average and 7% higher than the national average. The median age in Pomona is 61 which is approximately 58% higher than the Missouri average of 38. In Pomona, 90% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 61% of Pomona residents were born in Missouri, 39% were born out of state, 0% were born outside of the United States and 0% were foreign born.