Brooklyn, IA has a population of 1,422 and is the 13,008th largest city in the United States. The population density is 1,132 per sq mi which is 1973% higher than the Iowa average and 1150% higher than the national average. The median age in Brooklyn is 38 which is approximately 1% higher than the Iowa average of 38. In Brooklyn, 62% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 89% of Brooklyn residents were born in Iowa, 11% were born out of state, 0% were born outside of the United States and 1% were foreign born.