Caledonia Township, Boone County, Illinois

Caledonia Township is a township in Boone County, Illinois. About 7,239 people live there (2020–2024 estimate). It covers 24.1 sq mi (62.3 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Caledonia Township in Illinois
Poplar Grove TownshipHarlem Township
Caledonia Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
7,239 ± 24
County
Boone County
School district
Belvidere Consolidated Unit School District 100
Land area
24.1 sq mi (62.3 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$104,492 ± $15,589
Median home value
$240,400 ± $35,247
Water area
0.31 sq mi (0.81 km²)
State
Illinois
Census code (GEOID)
1700710435
Coordinates (central point)
42.371137, -88.901401

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Cities, towns and communities in Caledonia Township, largest first

  1. Candlewick Lake (CDP)5,448 people
  2. Timberlane (village)1,278 people
  3. Argyle (CDP)324 people
  4. Caledonia (village)226 people

These places’ central points lie inside Caledonia Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Poplar Grove Township4.0 mi east
  2. Harlem Township, Winnebago County4.2 mi west
  3. Manchester Township5.4 mi north
  4. Belvidere Township6.2 mi south

These towns, townships, cities and boroughs share a boundary with Caledonia Township. Distances are straight lines between central points, not driving distances.

Other townships in Boone County, largest first

  1. Belvidere Township29,286 people
  2. Poplar Grove Township5,150 people
  3. Bonus Township4,363 people
  4. Flora Township2,988 people
  5. Boone Township2,108 people
  6. Spring Township1,009 people
  7. Manchester Township697 people
  8. LeRoy Township390 people

People counts are American Community Survey 2020–2024 5-year estimates. See Boone County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in Caledonia Township

Longest day
15 hours 18 minutes around June 21
Shortest day
9 hours 4 minutes around December 21
Earliest sunrise
5:18 AM around June 15
Latest sunrise
7:34 AM the day before clocks go back in November
Earliest sunset
4:22 PM around December 9
Latest sunset
8:36 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:22 AM4:48 PM9 h 26 min
Feb 156:52 AM5:27 PM10 h 35 min
Mar 157:07 AM7:01 PM11 h 54 min
Apr 156:14 AM7:37 PM13 h 23 min
May 155:34 AM8:10 PM14 h 36 min
Jun 155:18 AM8:34 PM15 h 16 min
Jul 155:32 AM8:30 PM14 h 58 min
Aug 156:02 AM7:56 PM13 h 54 min
Sep 156:35 AM7:05 PM12 h 30 min
Oct 157:08 AM6:13 PM11 h 5 min
Nov 156:46 AM4:33 PM9 h 47 min
Dec 157:17 AM4:23 PM9 h 6 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Boone County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗