Clear Lake Township, Sangamon County, Illinois

Clear Lake Township is a township in Sangamon County, Illinois. About 8,302 people live there (2020–2024 estimate). It covers 33.7 sq mi (87.2 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Clear Lake Township in Illinois
Capital Township
Clear Lake Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
8,302 ± 34
County
Sangamon County
Land area
33.7 sq mi (87.2 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$86,473 ± $11,177
Median home value
$195,600 ± $41,952
Water area
0.81 sq mi (2.11 km²)
State
Illinois
Census code (GEOID)
1716714858
Coordinates (central point)
39.828164, -89.533735

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 Clear Lake Township, largest first

  1. Riverton (village)3,513 people
  2. Spaulding (village)879 people

These places’ central points lie inside Clear Lake 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. Mechanicsburg Township5.5 mi east
  2. Rochester Township5.7 mi south
  3. Capital Township6.4 mi southwest
  4. Springfield Township6.6 mi west
  5. Williams Township6.7 mi north
  6. Woodside Township9.8 mi southwest

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

Other townships in Sangamon County, largest first

  1. Capital Township111,650 people
  2. Woodside Township11,416 people
  3. Chatham Township8,443 people
  4. Ball Township7,571 people
  5. Auburn Township5,866 people
  6. Fancy Creek Township5,826 people
  7. Rochester Township5,538 people
  8. Springfield Township5,522 people
  9. Gardner Township4,608 people
  10. Williams Township3,422 people
  11. Pawnee Township2,985 people
  12. Mechanicsburg Township2,301 people
All 25
  1. Curran Township1,625 people
  2. Divernon Township1,561 people
  3. Illiopolis Township1,488 people
  4. New Berlin Township1,481 people
  5. Loami Township1,169 people
  6. Cartwright Township1,129 people
  7. Cotton Hill Township1,099 people
  8. Cooper Township763 people
  9. Island Grove Township467 people
  10. Maxwell Township238 people
  11. Talkington Township161 people
  12. Lanesville Township160 people
  13. Buffalo Hart Township156 people

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

Sunrise and sunset in Clear Lake Township

Longest day
14 hours 59 minutes around June 21
Shortest day
9 hours 21 minutes around December 21
Earliest sunrise
5:29 AM around June 14
Latest sunrise
7:32 AM the day before clocks go back in November
Earliest sunset
4:33 PM around December 7
Latest sunset
8:30 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 157:17 AM4:57 PM9 h 40 min
Feb 156:50 AM5:34 PM10 h 44 min
Mar 157:09 AM7:04 PM11 h 55 min
Apr 156:20 AM7:36 PM13 h 16 min
May 155:43 AM8:06 PM14 h 23 min
Jun 155:29 AM8:28 PM14 h 59 min
Jul 155:42 AM8:25 PM14 h 43 min
Aug 156:09 AM7:54 PM13 h 45 min
Sep 156:39 AM7:06 PM12 h 27 min
Oct 157:08 AM6:18 PM11 h 10 min
Nov 156:42 AM4:42 PM10 h
Dec 157:12 AM4:34 PM9 h 22 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 Sangamon County or the local office.

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

See this area on Census.gov ↗