DeKalb Township, DeKalb County, Illinois

DeKalb Township is a township in DeKalb County, Illinois. About 42,778 people live there (2020–2024 estimate). It covers 35.1 sq mi (90.8 km²) of land and uses Central Time. It has its own local government.

Chicago
DeKalb Township in Illinois
DeKalb Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
42,778 ± 73
County
DeKalb County
School district
DeKalb Community Unit School District 428
Land area
35.1 sq mi (90.8 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$47,082 ± $3,916
Median home value
$204,100 ± $9,886
Water area
0.24 sq mi (0.63 km²)
State
Illinois
Census code (GEOID)
1703719174
Coordinates (central point)
41.935499, -88.771854

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 DeKalb Township

  1. DeKalb (city)40,443 people

This place’s central point lies inside DeKalb 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. Afton Township5.5 mi south
  2. Cortland Township5.7 mi east
  3. Malta Township5.7 mi west
  4. Mayfield Township5.9 mi north

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

Other townships in DeKalb County, largest first

  1. Sycamore Township14,846 people
  2. Cortland Township11,312 people
  3. Sandwich Township7,529 people
  4. Genoa Township5,606 people
  5. Kingston Township3,464 people
  6. Squaw Grove Township2,716 people
  7. Franklin Township2,286 people
  8. Clinton Township2,149 people
  9. Somonauk Township1,827 people
  10. Malta Township1,741 people
  11. Shabbona Township1,082 people
  12. Afton Township938 people
All 18
  1. Mayfield Township851 people
  2. Pierce Township554 people
  3. South Grove Township352 people
  4. Milan Township286 people
  5. Paw Paw Township198 people
  6. Victor Township188 people

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

Sunrise and sunset in DeKalb Township

Longest day
15 hours 14 minutes around June 21
Shortest day
9 hours 7 minutes around December 21
Earliest sunrise
5:19 AM around June 15
Latest sunrise
7:33 AM the day before clocks go back in November
Earliest sunset
4:23 PM around December 8
Latest sunset
8:34 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 157:20 AM4:48 PM9 h 28 min
Feb 156:51 AM5:27 PM10 h 36 min
Mar 157:07 AM7:01 PM11 h 54 min
Apr 156:14 AM7:36 PM13 h 22 min
May 155:34 AM8:08 PM14 h 34 min
Jun 155:19 AM8:32 PM15 h 13 min
Jul 155:32 AM8:28 PM14 h 56 min
Aug 156:02 AM7:55 PM13 h 53 min
Sep 156:35 AM7:04 PM12 h 29 min
Oct 157:07 AM6:13 PM11 h 6 min
Nov 156:44 AM4:34 PM9 h 50 min
Dec 157:15 AM4:24 PM9 h 9 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 DeKalb County or the local office.

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

See this area on Census.gov ↗