Cuba, MO has a population of 3,348 and is the 8,268th largest city in the United States. The population density is 1,049 per sq mi which is 1114% higher than the Missouri average and 1058% higher than the national average. The median age in Cuba is 35 which is approximately 10% lower than the Missouri average of 38. In Cuba, 52% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 76% of Cuba residents were born in Missouri, 20% were born out of state, 2% were born outside of the United States and 2% were foreign born.