Rock Creek Township, Jasper County, Iowa
Rock Creek Township is a township in Jasper County, Iowa. About 1,206 people live there (2020–2024 estimate). It covers 34.8 sq mi (90.1 km²) of land and uses Central Time. Its local government works under another unit of government.
- Population, 2020–2024 estimate
- 1,206 ± 335
- County
- Jasper County
- School district
- Grinnell-Newburg Community School District
- Land area
- 34.8 sq mi (90.1 km²)
- Type
- TownshipGovernment under another
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $93,816 ± $16,696
- Median home value
- $221,500 ± $40,383
- Water area
- 0.9 sq mi (2.32 km²)
- State
- Iowa
- Census code (GEOID)
- 1909993672
- Coordinates (central point)
- 41.725630, -92.822030
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 Rock Creek Township
- Oakland Acres (city)191 people
This place’s central point lies inside Rock Creek 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
- Richland Township5.7 mi south
- Hickory Grove Township5.9 mi north
- Kellogg Township5.9 mi west
- Grant Township, Poweshiek County6.3 mi east
These towns, townships, cities and boroughs share a boundary with Rock Creek Township. Distances are straight lines between central points, not driving distances.
Other townships in Jasper County, largest first
- Newton Township15,266 people
- Palo Alto Township4,245 people
- Washington Township2,675 people
- Fairview Township2,611 people
- Des Moines Township2,168 people
- Lynn Grove Township1,973 people
- Independence Township1,746 people
- Poweshiek Township1,234 people
- Kellogg Township1,062 people
- Mound Prairie Township710 people
- Buena Vista Township572 people
- Hickory Grove Township530 people
All 18
- Malaka Township435 people
- Elk Creek Township433 people
- Clear Creek Township422 people
- Sherman Township394 people
- Richland Township170 people
- Mariposa Township102 people
People counts are American Community Survey 2020–2024 5-year estimates. See Jasper County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in Rock Creek Township
- Longest day
- 15 hours 13 minutes around June 21
- Shortest day
- 9 hours 9 minutes around December 21
- Earliest sunrise
- 5:36 AM around June 15
- Latest sunrise
- 7:49 AM the day before clocks go back in November
- Earliest sunset
- 4:40 PM around December 8
- Latest sunset
- 8:50 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 | 7:36 AM | 5:05 PM | 9 h 29 min |
| Feb 15 | 7:06 AM | 5:44 PM | 10 h 38 min |
| Mar 15 | 7:23 AM | 7:17 PM | 11 h 54 min |
| Apr 15 | 6:31 AM | 7:51 PM | 13 h 20 min |
| May 15 | 5:51 AM | 8:24 PM | 14 h 33 min |
| Jun 15 | 5:36 AM | 8:47 PM | 15 h 11 min |
| Jul 15 | 5:49 AM | 8:44 PM | 14 h 55 min |
| Aug 15 | 6:19 AM | 8:11 PM | 13 h 52 min |
| Sep 15 | 6:51 AM | 7:20 PM | 12 h 29 min |
| Oct 15 | 7:23 AM | 6:30 PM | 11 h 7 min |
| Nov 15 | 7:00 AM | 4:50 PM | 9 h 50 min |
| Dec 15 | 7:31 AM | 4:41 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 Jasper County or the local office.
Find the township or town where you are now or find your county.