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Marengo, IL

View of Marengo, IL
Image credit: Andy McMurray / CC BY 2.5
Population
7,737
U.S. Census Population Estimates Program · 2025
Elevation
833 ft
Median Home Value
$229,900
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,176/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$73,523
U.S. Census American Community Survey 5-Year · 2024

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Marengo in context.

OverallBest places in IllinoisPopulation rankingHighest population places in IllinoisNearest larger communityWoodstock, Illinois9.4 miles away · 25,740 residents.

About Marengo

Marengo is a city in McHenry County, Illinois, situated along the Kishwaukee River west of Chicago. Located near the historic Marengo Ridge glacial conservation area, the community of approximately 7,040 features a historic train station preserved by the Illinois Railway Museum. Public secondary education is served by the Marengo Community High School district.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingSmall Town FitA+99.1rating

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