Kearney, MO has a population of 9,259 and is the 4,167th largest city in the United States. The population density is 719 per sq mi which is 699% higher than the Missouri average and 694% higher than the national average. The median age in Kearney is 34 which is approximately 11% lower than the Missouri average of 38. In Kearney, 60% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 66% of Kearney residents were born in Missouri, 34% were born out of state, 0% were born outside of the United States and 0% were foreign born.