Sabula, IA has a population of 448 and is the 20,226th largest city in the United States. The population density is 1,109 per sq mi which is 1930% higher than the Iowa average and 1124% higher than the national average. The median age in Sabula is 50 which is approximately 33% higher than the Iowa average of 38. In Sabula, 65% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 59% of Sabula residents were born in Iowa, 41% were born out of state, 0% were born outside of the United States and 0% were foreign born.