Brunsville, IA has a population of 105 and is the 26,797th largest city in the United States. The population density is 445 per sq mi which is 714% higher than the Iowa average and 391% higher than the national average. The median age in Brunsville is 51 which is approximately 34% higher than the Iowa average of 38. In Brunsville, 72% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 78% of Brunsville residents were born in Iowa, 22% were born out of state, 0% were born outside of the United States and 0% were foreign born.