Rock Grove Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 1,388 and it contained 761 housing units.[3] The unincorporated community of Rock Grove is located in the township, and once Duncannon was located here also.

Rock Grove Township
Township
Location in Stephenson County
Location in Stephenson County
Coordinates: 42°28′44″N 89°29′11″W / 42.47889°N 89.48639°W / 42.47889; -89.48639[1]
CountryUnited States
StateIllinois
CountyStephenson
Government
 • SupervisorGeorge Suess
Area
 • Total
30.42 sq mi (78.8 km2)
 • Land30.27 sq mi (78.4 km2)
 • Water0.15 sq mi (0.4 km2)  0.49%
Elevation958 ft (292 m)
Population
 (2010)
 • Estimate 
(2016)[2]
1,347
 • Density45.9/sq mi (17.7/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
FIPS code17-177-65065

Geography

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Rock Grove is Township 28 (part) and 29 North, Range 8 (part) and 9 East of the Fourth Principal Meridian.

According to the 2010 census, the township has a total area of 30.42 square miles (78.8 km2), of which 30.27 square miles (78.4 km2) (or 99.51%) is land and 0.15 square miles (0.39 km2) (or 0.49%) is water.[3]

Demographics

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Historical population
CensusPop.Note
2016 (est.)1,347[2]
U.S. Decennial Census[4]

References

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  1. ^ a b "Township of Rock Grove". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. ^ a b "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  3. ^ a b "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Archived from the original on February 12, 2020. Retrieved May 28, 2013.
  4. ^ "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.
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