Danville, IA has a population of 1,079 and is the 14,672nd largest city in the United States. The population density is 1,430 per sq mi which is 2517% higher than the Iowa average and 1478% higher than the national average. The median age in Danville is 37 which is approximately 2% lower than the Iowa average of 38. In Danville, 67% of the population over 15 years of age are married, 96% speak English and 2% speak Spanish. 80% of Danville residents were born in Iowa, 20% were born out of state, 0% were born outside of the United States and 1% were foreign born.