Columbia, MO has a population of 117,165 and is the 239th largest city in the United States. The population density is 1,794 per sq mi which is 1977% higher than the Missouri average and 1881% higher than the national average. The median age in Columbia is 27 which is approximately 28% lower than the Missouri average of 38. In Columbia, 42% of the population over 15 years of age are married, 90% speak English and 2% speak Spanish. 60% of Columbia residents were born in Missouri, 32% were born out of state, 1% were born outside of the United States and 8% were foreign born.