Lisbon, IA has a population of 1,908 and is the 11,295th largest city in the United States. The population density is 891 per sq mi which is 1531% higher than the Iowa average and 883% higher than the national average. The median age in Lisbon is 40 which is approximately 5% higher than the Iowa average of 38. In Lisbon, 68% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 79% of Lisbon residents were born in Iowa, 20% were born out of state, 1% were born outside of the United States and 0% were foreign born.