Union Township, Davison County, South Dakota
Union Township is a township in Davison County, South Dakota. About 18 people live there (2020–2024 estimate). It covers 36.2 sq mi (93.7 km²) of land and uses Central Time. It has its own local government.
- Population, 2020–2024 estimate
- 18 ± 15
- County
- Davison County
- School district
- Mount Vernon School District 17-3
- Land area
- 36.2 sq mi (93.7 km²)
- Type
- TownshipIts own local government
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $56,250 ± $39,213
- Water area
- 0.02 sq mi (0.06 km²)
- State
- South Dakota
- Census code (GEOID)
- 4603565020
- Coordinates (central point)
- 43.638342, -98.254791
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
- Lisbon Township5.5 mi east
- Dudley Township, Aurora County6.6 mi west
- Baker Township6.7 mi south
- Mount Vernon Township7.2 mi north
These towns, townships, cities and boroughs share a boundary with Union Township. Distances are straight lines between central points, not driving distances.
Other townships in Davison County, largest first
- Prosper Township498 people
- Beulah Township299 people
- Lisbon Township199 people
- Mount Vernon Township198 people
- Rome Township185 people
- Badger Township161 people
- Perry Township154 people
- Blendon Township81 people
- Tobin Township75 people
- Baker Township56 people
People counts are American Community Survey 2020–2024 5-year estimates. See Davison County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Union Township
- Longest day
- 15 hours 27 minutes around June 21
- Shortest day
- 8 hours 56 minutes around December 21
- Earliest sunrise
- 5:50 AM around June 15
- Latest sunrise
- 8:15 AM the day before clocks go back in November
- Earliest sunset
- 4:56 PM around December 9
- Latest sunset
- 9:18 PM around June 26
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 | 8:03 AM | 5:21 PM | 9 h 18 min |
| Feb 15 | 7:31 AM | 6:03 PM | 10 h 32 min |
| Mar 15 | 7:45 AM | 7:39 PM | 11 h 54 min |
| Apr 15 | 6:50 AM | 8:16 PM | 13 h 26 min |
| May 15 | 6:08 AM | 8:51 PM | 14 h 43 min |
| Jun 15 | 5:50 AM | 9:16 PM | 15 h 26 min |
| Jul 15 | 6:05 AM | 9:12 PM | 15 h 7 min |
| Aug 15 | 6:37 AM | 8:36 PM | 13 h 59 min |
| Sep 15 | 7:12 AM | 7:43 PM | 12 h 31 min |
| Oct 15 | 7:47 AM | 6:49 PM | 11 h 2 min |
| Nov 15 | 7:26 AM | 5:07 PM | 9 h 41 min |
| Dec 15 | 7:59 AM | 4:56 PM | 8 h 57 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 Davison County or the local office.
Find the township or town where you are now or find your county.