Eureka Township, Sac County, Iowa
Eureka Township is a township in Sac County, Iowa. About 827 people live there (2020–2024 estimate). It covers 36.1 sq mi (93.4 km²) of land and uses Central Time. Its local government works under another unit of government.
- Population, 2020–2024 estimate
- 827 ± 172
- County
- Sac County
- School district
- Schaller-Crestland Community School District
- Land area
- 36.1 sq mi (93.4 km²)
- Type
- TownshipGovernment under another
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $67,917 ± $6,483
- Median home value
- $81,800 ± $22,025
- State
- Iowa
- Census code (GEOID)
- 1916191251
- Coordinates (central point)
- 42.517898, -95.328783
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 Eureka Township
- Schaller (city)775 people
This place’s central point lies inside Eureka 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
- Galva Township, Ida County5.6 mi west
- Eden Township5.9 mi east
- Maple Valley Township, Buena Vista County6.0 mi north
- Silver Creek Township, Ida County6.5 mi southwest
- Cook Township6.6 mi southeast
These towns, townships, cities and boroughs share a boundary with Eureka Township. Distances are straight lines between central points, not driving distances.
Other townships in Sac County, largest first
- Jackson Township2,085 people
- Wall Lake Township1,218 people
- Boyer Valley Township1,060 people
- Richland Township1,009 people
- Levey Township904 people
- Viola Township556 people
- Cedar Township452 people
- Sac Township414 people
- Delaware Township287 people
- Coon Valley Township236 people
- Eden Township202 people
- Douglas Township155 people
All 15
- Cook Township119 people
- Wheeler Township89 people
- Clinton Township76 people
People counts are American Community Survey 2020–2024 5-year estimates. See Sac County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Eureka Township
- Longest day
- 15 hours 19 minutes around June 21
- Shortest day
- 9 hours 4 minutes around December 21
- Earliest sunrise
- 5:43 AM around June 15
- Latest sunrise
- 8:01 AM the day before clocks go back in November
- Earliest sunset
- 4:48 PM around December 9
- Latest sunset
- 9:02 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 | 7:48 AM | 5:13 PM | 9 h 25 min |
| Feb 15 | 7:18 AM | 5:53 PM | 10 h 35 min |
| Mar 15 | 7:33 AM | 7:27 PM | 11 h 54 min |
| Apr 15 | 6:40 AM | 8:03 PM | 13 h 23 min |
| May 15 | 5:59 AM | 8:36 PM | 14 h 37 min |
| Jun 15 | 5:43 AM | 9:00 PM | 15 h 17 min |
| Jul 15 | 5:57 AM | 8:56 PM | 14 h 59 min |
| Aug 15 | 6:28 AM | 8:22 PM | 13 h 54 min |
| Sep 15 | 7:01 AM | 7:31 PM | 12 h 30 min |
| Oct 15 | 7:34 AM | 6:39 PM | 11 h 5 min |
| Nov 15 | 7:12 AM | 4:58 PM | 9 h 46 min |
| Dec 15 | 7:43 AM | 4:48 PM | 9 h 5 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 Sac County or the local office.
Find the township or town where you are now or find your county.