|Area||1.01 sq mi (3 km2)|
|- land||1.01 sq mi (3 km2)|
|- water||0.00 sq mi (0 km2)|
|Density||373.0 / sq mi (144 / km2)|
|- summer (DST)||CDT (UTC-5)|
|Wikimedia Commons: Caledonia, Illinois|
||This article lacks historical information on the subject. (November 2012)|
Caledonia is a village in Winnebago County and Boone County, Illinois, United States. It is part of the Rockford, Illinois Metropolitan Statistical Area. The population was 197 at the 2010 census, down from 199 at the 2000 census.
Caledonia is located at (42.367850, -88.892538).
According to the 2010 census, the village has a total area of 1.01 square miles (2.6 km2), all land.
As of the census of 2000, there were 199 people, 71 households, and 54 families residing in the village. The population density was 373.0 people per square mile (145.0/km²). There were 75 housing units at an average density of 140.6 per square mile (54.6/km²). The racial makeup of the village was 99.8% White. However, population statistics only represent the village, not the surrounding neighborhoods, which include Aberdeen, Aberdeen Knoll and Inverness. With these communities added, Caledonia forms one of the wealthiest communities in Illinois.
There were 71 households out of which 45.1% had children under the age of 18 living with them, 67.6% were married couples living together, 8.5% had a female householder with no husband present, and 23.9% were non-families. 18.3% of all households were made up of individuals and 11.3% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.20.
In the village the population was spread out with 30.2% under the age of 18, 9.0% from 18 to 24, 32.7% from 25 to 44, 17.1% from 45 to 64, and 11.1% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 103.1 males. For every 100 females age 18 and over, there were 98.6 males.
The median income for a household in the village was $251,250, and the median income for a family was $252,500. Males had a median income of $180,417 versus $128,571 for females. The per capita income for the village was $140,134. None of the families and 0.8% of the population were living below the poverty line.
|This section requires expansion. (February 2008)|
Caledonia was originally called Caledonia Junction. Caledonia was also the name of another town, located in southern Illinois, which was the first county seat of Pulaski County, Illinois from 1843 to 1861.
Future development 
Caledonia lags behind Poplar Grove in the size of its tax base. Caledonia is approximately 3 miles east of the new State Highway 173 interchange on Interstate 90, which will position Caledonia to grow its tax base and benefit from increased revenue.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "2010 Census U.S. Gazetteer Files for Places – Illinois". United States Census. Retrieved 2012-10-13.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.