Spring Bay Township, Woodford County, Illinois

Spring Bay Township is a township in Woodford County, Illinois. About 2,531 people live there (2020–2024 estimate). It covers 10.1 sq mi (26.2 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Spring Bay Township in Illinois
Medina TownshipRichwoods TownshipWorth Township
Spring Bay Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
2,531 ± 37
County
Woodford County
School districts
County of Woodford School9–12 · high schoolRiverview Consolidated Community School District 2Pre-K to 8 · elementary
Land area
10.1 sq mi (26.2 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$75,846 ± $19,371
Median home value
$169,100 ± $35,648
Water area
7.18 sq mi (18.6 km²)
State
Illinois
Census code (GEOID)
1720371611
Coordinates (central point)
40.792208, -89.526993

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 Spring Bay Township, largest first

  1. Spring Bay (village)520 people
  2. Bay View Gardens (village)281 people

These places’ central points lie inside Spring Bay 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. Richwoods Township, Peoria County3.6 mi southwest
  2. Worth Township4.6 mi east
  3. Medina Township, Peoria County4.8 mi northwest
  4. Peoria City Township, Peoria County5.4 mi southwest
  5. Partridge Township6.2 mi northeast
  6. Fondulac Township, Tazewell County6.4 mi south

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

Other townships in Woodford County, largest first

  1. Worth Township8,862 people
  2. Olio Township4,691 people
  3. Metamora Township4,513 people
  4. El Paso Township3,400 people
  5. Montgomery Township2,615 people
  6. Roanoke Township2,251 people
  7. Minonk Township2,028 people
  8. Cruger Township1,906 people
  9. Cazenovia Township1,591 people
  10. Palestine Township1,347 people
  11. Partridge Township616 people
  12. Clayton Township569 people
All 16
  1. Kansas Township503 people
  2. Panola Township327 people
  3. Linn Township299 people
  4. Greene Township263 people

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

Sunrise and sunset in Spring Bay Township

Longest day
15 hours 7 minutes around June 21
Shortest day
9 hours 15 minutes around December 21
Earliest sunrise
5:26 AM around June 14
Latest sunrise
7:34 AM the day before clocks go back in November
Earliest sunset
4:30 PM around December 8
Latest sunset
8:33 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 AM4:55 PM9 h 35 min
Feb 156:52 AM5:32 PM10 h 40 min
Mar 157:09 AM7:04 PM11 h 55 min
Apr 156:19 AM7:37 PM13 h 18 min
May 155:40 AM8:08 PM14 h 28 min
Jun 155:26 AM8:31 PM15 h 5 min
Jul 155:39 AM8:28 PM14 h 49 min
Aug 156:08 AM7:56 PM13 h 48 min
Sep 156:38 AM7:07 PM12 h 29 min
Oct 157:09 AM6:17 PM11 h 8 min
Nov 156:44 AM4:39 PM9 h 55 min
Dec 157:15 AM4:31 PM9 h 16 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 Woodford County or the local office.

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

See this area on Census.gov ↗