Astoria, IL has a population of 1,065 and is the 14,759th largest city in the United States. The population density is 1,819 per sq mi which is 718% higher than the Illinois average and 1908% higher than the national average. The median age in Astoria is 40 which is approximately 6% higher than the Illinois average of 37. In Astoria, 53% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 89% of Astoria residents were born in Illinois, 10% were born out of state, 1% were born outside of the United States and 0% were foreign born.