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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
Coordinates: 42°28′44″N 89°29′11″W[1]
Country	United States
State	Illinois
County	Stephenson
Government
• Supervisor	George Suess
Area
• Total	30.42 sq mi (78.8 km2)
• Land	30.27 sq mi (78.4 km2)
• Water	0.15 sq mi (0.4 km2)  0.49%
Elevation [1]	958 ft (292 m)
Population  (2010)
• Estimate  (2016)[2]	1,347
• Density	45.9/sq mi (17.7/km2)
Time zone	UTC-6 (CST)
• Summer (DST)	UTC-5 (CDT)
FIPS code	17-177-65065

Geography

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

Historical population
Census	Pop.		%±
2016 (est.)	1,347	[2]
U.S. Decennial Census[4]

References

External links

• City-data.com
• Stephenson County Official Site

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