Delavan Township, Tazewell County, Illinois

Delavan Township is a township in Tazewell County, Illinois. About 1,881 people live there (2020–2024 estimate). It covers 30.2 sq mi (78.1 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Delavan Township in Illinois
Delavan Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
1,881 ± 332
County
Tazewell County
School district
Delavan Community Unit School District 703
Land area
30.2 sq mi (78.1 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$67,250 ± $13,749
Median home value
$131,900 ± $17,196
Water area
0.02 sq mi (0.05 km²)
State
Illinois
Census code (GEOID)
1717919239
Coordinates (central point)
40.360636, -89.544719

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.

Census place in Delavan Township

  1. Delavan (city)1,489 people

This place’s central point lies inside Delavan 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. Dillon Township5.3 mi north
  2. Boynton Township5.8 mi east
  3. Malone Township6.1 mi west
  4. Prairie Creek Township, Logan County6.3 mi south

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

Other townships in Tazewell County, largest first

  1. Pekin Township27,280 people
  2. Washington Township24,276 people
  3. Groveland Township18,513 people
  4. Morton Township17,998 people
  5. Fondulac Township12,186 people
  6. Cincinnati Township8,797 people
  7. Mackinaw Township4,240 people
  8. Elm Grove Township2,954 people
  9. Tremont Township2,653 people
  10. Hopedale Township1,806 people
  11. Spring Lake Township1,658 people
  12. Deer Creek Township1,331 people
All 18
  1. Little Mackinaw Township1,252 people
  2. Sand Prairie Township1,192 people
  3. Dillon Township1,055 people
  4. Hittle Township571 people
  5. Boynton Township406 people
  6. Malone Township241 people

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

Sunrise and sunset in Delavan Township

Longest day
15 hours 3 minutes around June 21
Shortest day
9 hours 17 minutes around December 21
Earliest sunrise
5:27 AM around June 14
Latest sunrise
7:33 AM the day before clocks go back in November
Earliest sunset
4:31 PM around December 8
Latest sunset
8:32 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 157:19 AM4:56 PM9 h 37 min
Feb 156:51 AM5:33 PM10 h 42 min
Mar 157:09 AM7:04 PM11 h 55 min
Apr 156:20 AM7:37 PM13 h 17 min
May 155:42 AM8:07 PM14 h 25 min
Jun 155:27 AM8:29 PM15 h 2 min
Jul 155:40 AM8:27 PM14 h 47 min
Aug 156:09 AM7:55 PM13 h 46 min
Sep 156:38 AM7:07 PM12 h 29 min
Oct 157:08 AM6:18 PM11 h 10 min
Nov 156:43 AM4:41 PM9 h 58 min
Dec 157:13 AM4:32 PM9 h 19 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 Tazewell County or the local office.

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

See this area on Census.gov ↗