Maquoketa, IA has a population of 6,025 and is the 5,749th largest city in the United States. The population density is 1,390 per sq mi which is 2445% higher than the Iowa average and 1435% higher than the national average. The median age in Maquoketa is 41 which is approximately 7% higher than the Iowa average of 38. In Maquoketa, 53% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 75% of Maquoketa residents were born in Iowa, 23% were born out of state, 1% were born outside of the United States and 1% were foreign born.