Allenville, MO has a population of 84 and is the 27,330th largest city in the United States. The population density is 543 per sq mi which is 529% higher than the Missouri average and 500% higher than the national average. The median age in Allenville is 45 which is approximately 17% higher than the Missouri average of 38. In Allenville, 75% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 68% of Allenville residents were born in Missouri, 32% were born out of state, 0% were born outside of the United States and 0% were foreign born.