Oak Lake Township, Brookings County, South Dakota
Oak Lake Township is a township in Brookings County, South Dakota. About 109 people live there (2020–2024 estimate). It covers 35.8 sq mi (92.7 km²) of land and uses Central Time. It has its own local government.
- Population, 2020–2024 estimate
- 109 ± 57
- County
- Brookings County
- School district
- Deubrook School District 05-6
- Land area
- 35.8 sq mi (92.7 km²)
- Type
- TownshipIts own local government
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $133,125 ± $116,794
- Median home value
- $277,700 ± $16,300
- Water area
- 0.41 sq mi (1.07 km²)
- State
- South Dakota
- Census code (GEOID)
- 4601146340
- Coordinates (central point)
- 44.499384, -96.595300
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
- Argo Township5.0 mi west
- Lake Hendricks Township5.6 mi east
- Sherman Township6.0 mi south
- Scandinavia Township, Deuel County6.8 mi north
- Blom Township, Deuel County8.1 mi northwest
These towns, townships, cities and boroughs share a boundary with Oak Lake Township. Distances are straight lines between central points, not driving distances.
Other townships in Brookings County, largest first
- Medary Township1,452 people
- Brookings Township617 people
- Sterling Township345 people
- Trenton Township249 people
- Oakwood Township246 people
- Oslo Township246 people
- Bangor Township224 people
- Sherman Township195 people
- Lake Hendricks Township192 people
- Winsor Township190 people
- Richland Township177 people
- Lake Sinai Township156 people
All 22
- Alton Township150 people
- Laketon Township149 people
- Aurora Township134 people
- Parnell Township131 people
- Afton Township129 people
- Volga Township124 people
- Argo Township84 people
- Eureka Township82 people
- Elkton Township80 people
- Preston Township60 people
People counts are American Community Survey 2020–2024 5-year estimates. See Brookings County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Oak Lake Township
- Longest day
- 15 hours 33 minutes around June 21
- Shortest day
- 8 hours 50 minutes around December 21
- Earliest sunrise
- 5:41 AM around June 15
- Latest sunrise
- 8:10 AM the day before clocks go back in November
- Earliest sunset
- 4:46 PM around December 9
- Latest sunset
- 9:15 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 | 7:59 AM | 5:12 PM | 9 h 13 min |
| Feb 15 | 7:26 AM | 5:55 PM | 10 h 29 min |
| Mar 15 | 7:38 AM | 7:32 PM | 11 h 54 min |
| Apr 15 | 6:42 AM | 8:11 PM | 13 h 29 min |
| May 15 | 5:58 AM | 8:47 PM | 14 h 49 min |
| Jun 15 | 5:41 AM | 9:12 PM | 15 h 31 min |
| Jul 15 | 5:55 AM | 9:08 PM | 15 h 13 min |
| Aug 15 | 6:29 AM | 8:31 PM | 14 h 2 min |
| Sep 15 | 7:05 AM | 7:37 PM | 12 h 32 min |
| Oct 15 | 7:41 AM | 6:42 PM | 11 h 1 min |
| Nov 15 | 7:22 AM | 4:58 PM | 9 h 36 min |
| Dec 15 | 7:55 AM | 4:47 PM | 8 h 52 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 Brookings County or the local office.
Find the township or town where you are now or find your county.