Johannisburg Township, Washington County, Illinois

Johannisburg Township is a township in Washington County, Illinois. About 391 people live there (2020–2024 estimate). It covers 36 sq mi (93.4 km²) of land and uses Central Time. It has its own local government.

ChicagoAurora
Johannisburg Township in Illinois
Johannisburg Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
391 ± 133
County
Washington County
School district
West Washington County Community Unit District 10
Land area
36 sq mi (93.4 km²)
Type
TownshipIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$91,964 ± $11,079
Median home value
$209,400 ± $104,995
State
Illinois
Census code (GEOID)
1718938453
Coordinates (central point)
38.349568, -89.648598

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.

Bordering areas, nearest first

  1. Venedy Township5.0 mi north
  2. Plum Hill Township5.8 mi east
  3. Fayetteville Township, St. Clair County6.0 mi west
  4. Lively Grove Township6.1 mi south

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

Other townships in Washington County, largest first

  1. Nashville Township3,433 people
  2. Okawville Township1,959 people
  3. Hoyleton Township1,305 people
  4. Irvington Township1,250 people
  5. Oakdale Township842 people
  6. Ashley Township751 people
  7. Beaucoup Township668 people
  8. Lively Grove Township561 people
  9. Du Bois Township434 people
  10. Pilot Knob Township416 people
  11. Venedy Township391 people
  12. Plum Hill Township388 people
All 15
  1. Covington Township319 people
  2. Bolo Township260 people
  3. Richview Township259 people

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

Sunrise and sunset in Johannisburg Township

Longest day
14 hours 50 minutes around June 21
Shortest day
9 hours 30 minutes around December 21
Earliest sunrise
5:34 AM around June 14
Latest sunrise
7:30 AM the day before clocks go back in November
Earliest sunset
4:37 PM around December 7
Latest sunset
8:26 PM around June 28

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 157:14 AM5:02 PM9 h 48 min
Feb 156:49 AM5:36 PM10 h 47 min
Mar 157:09 AM7:05 PM11 h 56 min
Apr 156:22 AM7:34 PM13 h 12 min
May 155:47 AM8:02 PM14 h 15 min
Jun 155:34 AM8:23 PM14 h 49 min
Jul 155:47 AM8:21 PM14 h 34 min
Aug 156:13 AM7:52 PM13 h 39 min
Sep 156:40 AM7:06 PM12 h 26 min
Oct 157:07 AM6:20 PM11 h 13 min
Nov 156:39 AM4:46 PM10 h 7 min
Dec 157:08 AM4:39 PM9 h 31 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 Washington County or the local office.

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

See this area on Census.gov ↗