Vinton, IA has a population of 5,166 and is the 6,314th largest city in the United States. The population density is 1,091 per sq mi which is 1896% higher than the Iowa average and 1104% higher than the national average. The median age in Vinton is 43 which is approximately 12% higher than the Iowa average of 38. In Vinton, 63% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 77% of Vinton residents were born in Iowa, 22% were born out of state, 0% were born outside of the United States and 1% were foreign born.