Caledonia is a city located in Boone County Illinois. With a 2020 population of 193, it is the 1144th largest city in Illinois and the 16808th largest city in the United States . Caledonia is currently declining at a rate of 0.00% annually and its population has decreased by -2.03% since the most recent census, which recorded a population of 197 in 2010. Caledonia reached it's highest population of in . Spanning over 1 miles, Caledonia has a population density of 187 people per square mile.
The average household income in Caledonia is $93,655 with a poverty rate of 1.46%. The median rental costs in recent years comes to $1,063 per month, and the median house value is $133,300. The median age in Caledonia is 39.6 years, 34.2 years for males, and 45 years for females.