Marengo Township, Illinois

Marengo Township is located in McHenry County, Illinois. As of the 2020 census, its population was 7,202 and it contained 3,065 housing units. Marengo is a city located in the township.

Marengo Township
Township
Location in McHenry County
Country	United States
State	Illinois
County	McHenry
Established	November 6, 1849
Government
• Supervisor	John R. Burns
Area
• Total	35.91 sq mi (93.0 km2)
• Land	35.89 sq mi (93.0 km2)
• Water	0.02 sq mi (0.05 km2)  0.06%
Population  (2020)
• Total	7,202
• Density	210.7/sq mi (81.4/km2)
Time zone	UTC-6 (CST)
• Summer (DST)	UTC-5 (CDT)
FIPS code	17-111-46799
Website	http://marengotownship.org/

Geography

According to the 2010 census, the township has a total area of 35.91 square miles (93.0 km²), of which 35.89 square miles (93.0 km²) (or 99.94%) is land and 0.02 square miles (0.052 km²) (or 0.06%) is water.^[1]

Demographics

Historical population

Census	Pop.	Note	%±
2010	7,564		—
2020	7,202		−4.8%
U.S. Decennial Census[2]