Eldora, IA has a population of 2,663 and is the 9,441st largest city in the United States. The population density is 615 per sq mi which is 1026% higher than the Iowa average and 579% higher than the national average. The median age in Eldora is 41 which is approximately 7% higher than the Iowa average of 38. In Eldora, 59% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 76% of Eldora residents were born in Iowa, 21% were born out of state, 0% were born outside of the United States and 3% were foreign born.