Township · Illinois
Caledonia Township, Illinois
Caledonia Township, township, in Boone County, Illinois. Caledonia Township had 7,246 residents on July 1, 2025 by the Census Bureau's estimate, down 0.6% since 2020; the 2020 Census counted 7,294 and the ACS 2020-2024 5-year estimates put it at 7,239 (±24). GEOID 1700710435.
Residents, July 2025 estimate
7,246
Census Bureau estimate (no margin published)
2020 Census count: 7,294 · ACS 2020-2024: 7,239 ±24
Median household income
$104,492
±$15,589 (90% margin)
Illinois: $83,390
Median home value
$240,400
±$35,247 (90% margin)
Illinois: $263,300
Median gross rent
$1,539
±$232 (90% margin)
Illinois: $1,274
Where is Caledonia Township and what county is it in?
Caledonia Township is a township in Boone County, Illinois. It covers 24.1 square miles of land, 303 residents per square mile in 2020.
4 places lie inside Caledonia Township: Candlewick Lake (CDP, 5,115 in 2020), Timberlane (village, 906 in 2020), Argyle (CDP, 332 in 2020) and Caledonia (village, 183 in 2020). Part of Loves Park (city) and Poplar Grove (village) also lie in it.
Caledonia Township is in the Rockford, IL metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Caledonia Township, and is it growing?
The Census Bureau estimates that 7,246 people lived in Caledonia Township on July 1, 2025, down 0.6% since 2020, in line with Illinois (−0.8%). The 2020 Census counted 7,294 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 7,239 (±24).
| Measure | Caledonia Township | Boone County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 7,239±24 | 53,230 | −126 |
| Households | 2,441±205 | 19,460 | no clear change |
| Average household size | 2.97±0.25 | 2.72 | no clear change |
| Housing units | 2,575±203 | 20,291 | no clear change |
Caledonia Township's population since 2000
From 4,416 in 2000 to 7,246 in 2025: up 64.1%. The 2000, 2010 and 2020 figures are census counts, each for Caledonia Township as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Caledonia Township?
The median resident of Caledonia Township is 38.6 years old; 23.2% are under 18 and 14.6% are 65 or older. The largest group is non-Hispanic white residents at 66.9%, then Hispanic or Latino residents (of any race) at 23.4%. 9.9% of residents were born outside the United States.
| Measure | Caledonia Township | Boone County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.6±3.7 | 39.7 | no clear change |
| Under 18 years | 23.2%±3.8 pts | 23.8% | – |
| 65 years and over | 14.6%±3.3 pts | 16.7% | – |
| Male | 50.3%±3.6 pts | 50.4% | – |
| Hispanic or Latino (any race) | 23.4%±6.2 pts | 25.6% | +9.5 pts |
| White alone, not Hispanic | 66.9%±5.8 pts | 68.0% | −8.8 pts |
| Black or African American alone, not Hispanic | 2.7%±2.8 pts | 2.3% | – |
| Asian alone, not Hispanic | 0.6%±1.0 pts | 1.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.5 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.5 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.4%±2.5 pts | 2.8% | – |
| Some other race alone, not Hispanic | 1.0%±1.7 pts | 0.4% | – |
| Born outside the United States | 9.9%±4.5 pts | 11.3% | no clear change |
| Speak a language other than English at home (age 5+) | 20.0%±6.9 pts | 20.6% | – |
| Civilian veterans (age 18+) | 9.7%±3.9 pts | 5.7% | – |
| With a disability | 14.7%±4.1 pts | 13.4% | – |
| No health insurance coverage | 3.6%±1.8 pts | 5.6% | – |
| High school graduate or higher (age 25+) | 90.6%±4.1 pts | 86.2% | – |
| Bachelor's degree or higher (age 25+) | 30.6%±5.4 pts | 23.6% | no clear change |
| Graduate or professional degree (age 25+) | 13.6%±3.9 pts | 9.4% | – |
| Lived in the same house a year earlier | 91.4%±5.5 pts | 91.7% | – |
| Moved from another state in the past year | 0.3%±0.3 pts | 0.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Caledonia Township earn?
Half of Caledonia Township's 2,441 households earn less than $104,492 a year (±$15,589), against $84,571 in Boone County and $83,390 in Illinois. In 2015-2019 the median was $130,205 in 2024 dollars, so it fell by $25,713 after inflation. 4.2% of residents live below the poverty line.
| Measure | Caledonia Township | Boone County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $104,492±$15,589 | $84,571 | −$25,713 |
| Mean household income | $119,661±$12,648 | $106,291 | – |
| Per capita income | $41,202±$4,303 | $39,818 | −$9,229 |
| People below the poverty line | 4.2%±2.4 pts | 9.9% | – |
| Children under 18 below the poverty line | 2.7%±2.8 pts | 15.6% | – |
| Households receiving SNAP | 6.6%±4.0 pts | 14.3% | – |
| Households with a computer | 91.9%±6.9 pts | 95.7% | – |
| Households with a broadband subscription | 91.5%±6.9 pts | 91.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Caledonia Township?
Owners occupy 94.3% of Caledonia Township's occupied homes and renters 5.7%. The median owner-occupied home is valued at $240,400 by its owner (±$35,247). The median renter pays $1,539 a month including utilities.
| Measure | Caledonia Township | Boone County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $240,400±$35,247 | $216,900 | no clear change |
| Median gross rent | $1,539±$232 | $1,041 | no clear change |
| Renters paying 35% or more of income on rent | 52.9%±38.6 pts | 37.0% | – |
| Median monthly owner costs, with a mortgage | $1,713±$192 | $1,635 | – |
| Owner-occupied homes | 94.3%±4.0 pts | 81.8% | no clear change |
| Renter-occupied homes | 5.7%±4.0 pts | 18.2% | – |
| Housing units | 2,575±203 | 20,291 | no clear change |
| Homeowner vacancy rate | 0.7%±0.9 pts | 0.6% | – |
| Rental vacancy rate | 0.0%±23.5 pts | 4.1% | – |
| Single-family detached homes | 96.1%±3.3 pts | 78.2% | – |
| Mobile homes | 2.8%±3.0 pts | 6.0% | – |
| Built 2020 or later | 1.1%±1.3 pts | 0.8% | – |
| Built 2010 to 2019 | 7.8%±5.4 pts | 4.6% | – |
| Built 1939 or earlier | 4.9%±2.8 pts | 17.4% | – |
| Households with no vehicle | 1.8%±1.4 pts | 4.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Caledonia Township work and get to work?
73.7% of Caledonia Township's workers drive alone and 14.7% work from home. The average trip to work takes 34.6 minutes. The unemployment rate in 2020-2024 averaged 6.4%.
| Measure | Caledonia Township | Boone County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.8%±5.2 pts | 65.8% | – |
| Unemployment rate | 6.4%±3.0 pts | 7.4% | – |
| Drove alone to work | 73.7%±5.6 pts | 78.8% | – |
| Carpooled | 10.3%±3.8 pts | 9.7% | – |
| Public transportation | 0.0%±1.0 pts | 0.3% | – |
| Walked | 0.6%±0.8 pts | 1.0% | – |
| Worked from home | 14.7%±5.1 pts | 9.6% | – |
| Mean travel time to work | 34.6 min±4.5 | 26.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Caledonia Township?
2 census tracts lie mostly in Caledonia Township, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $79,056 (Tract 106.04) to $134,747 (Tract 106.03).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 106.03Boone County | 6,387 | $134,747 |
| Tract 106.04Boone County | 5,710 | $79,056 |
| Tract 106.01Boone County | 3,487 | $96,250 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Caledonia Township) · Census block assignment files
How does Caledonia Township compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Caledonia Township is the 1,677th-most populous of the 16,079 U.S. towns and townships that have one and the 189th-most populous of 1,407 in Illinois.
Caledonia Township ranks 288th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 189th | 1,407 |
| Growth 2020-2025 (PEP) | 361st | 1,347 |
| Residents per square mile | 845th | 1,383 |
| Median household income | 288th | 1,380 |
| Per capita income | 557th | 1,383 |
| Median home value | 416th | 1,379 |
| Median gross rent | 185th | 1,280 |
| Poverty rate | 1,014th | 1,119 |
| Bachelor's degree or higher | 452nd | 1,369 |
| Median age | 986th | 1,383 |
| Owner-occupied share | 89th | 1,382 |
| Work from home | 310th | 1,015 |
| Travel time to work | 64th | 1,382 |
Caledonia Township's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Caledonia Township with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Caledonia Township?
17 of the 57 figures for Caledonia Township on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Caledonia Township are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.