Ontwa Township, Cass County, Michigan
Ontwa Township is a township in Cass County, Michigan. About 6,870 people live there (2020–2024 estimate). It covers 19.4 sq mi (50.3 km²) of land and uses Eastern Time. It has its own local government.
- Population, 2020–2024 estimate
- 6,870 ± 59
- County
- Cass County
- School district
- Edwardsburg Public Schools
- Land area
- 19.4 sq mi (50.3 km²)
- Type
- TownshipIts own local government
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $61,241 ± $7,744
- Median home value
- $249,800 ± $20,053
- Water area
- 1.57 sq mi (4.07 km²)
- State
- Michigan
- Census code (GEOID)
- 2602760900
- Coordinates (central point)
- 41.792728, -86.052304
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 Ontwa Township
- Edwardsburg (village)1,472 people
This place’s central point lies inside Ontwa 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
- Jefferson Township4.1 mi north
- Cleveland Township, Elkhart County, Indiana5.2 mi south
- Harris Township, St. Joseph County, Indiana5.3 mi southwest
- Mason Township6.3 mi east
- Milton Township6.4 mi west
- Osolo Township, Elkhart County, Indiana7.1 mi southeast
These towns, townships, cities and boroughs share a boundary with Ontwa Township. Distances are straight lines between central points, not driving distances.
Other townships in Cass County, largest first
- Howard Township6,278 people
- Porter Township3,885 people
- LaGrange Township3,751 people
- Milton Township3,140 people
- Silver Creek Township3,041 people
- Mason Township2,836 people
- Wayne Township2,660 people
- Jefferson Township2,578 people
- Marcellus Township2,179 people
- Pokagon Township2,157 people
- Penn Township2,052 people
- Calvin Township1,593 people
All 14
- Newberg Township1,528 people
- Volinia Township1,240 people
People counts are American Community Survey 2020–2024 5-year estimates. See Cass County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Ontwa Township
- Longest day
- 15 hours 13 minutes around June 21
- Shortest day
- 9 hours 8 minutes around December 21
- Earliest sunrise
- 6:08 AM around June 15
- Latest sunrise
- 8:22 AM the day before clocks go back in November
- Earliest sunset
- 5:13 PM around December 8
- Latest sunset
- 9:23 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.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 8:09 AM | 5:38 PM | 9 h 29 min |
| Feb 15 | 7:39 AM | 6:17 PM | 10 h 38 min |
| Mar 15 | 7:56 AM | 7:50 PM | 11 h 54 min |
| Apr 15 | 7:04 AM | 8:24 PM | 13 h 20 min |
| May 15 | 6:24 AM | 8:57 PM | 14 h 33 min |
| Jun 15 | 6:08 AM | 9:20 PM | 15 h 12 min |
| Jul 15 | 6:22 AM | 9:17 PM | 14 h 55 min |
| Aug 15 | 6:52 AM | 8:44 PM | 13 h 52 min |
| Sep 15 | 7:24 AM | 7:53 PM | 12 h 29 min |
| Oct 15 | 7:56 AM | 7:03 PM | 11 h 7 min |
| Nov 15 | 7:33 AM | 5:23 PM | 9 h 50 min |
| Dec 15 | 8:04 AM | 5:14 PM | 9 h 10 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 Cass County or the local office.
Find the township or town where you are now or find your county.