Richmond, IL has a population of 2,038 and is the 10,905th largest city in the United States. The population density is 480 per sq mi which is 116% higher than the Illinois average and 430% higher than the national average. The median age in Richmond is 37 which is approximately equal to the Illinois average of 37. In Richmond, 47% of the population over 15 years of age are married, 92% speak English and 4% speak Spanish. 74% of Richmond residents were born in Illinois, 19% were born out of state, 0% were born outside of the United States and 6% were foreign born.