Marengo, IL
Population 7,123 · Illinois
About Marengo, IL
Marengo is a small community in Illinois with a population of 7,123 residents. The median household income is $72,586 per year, which is above the national average. The median age in Marengo is 33.3 years.
Housing in Marengo has a median home value of $206,100 and median monthly rent of $1,077. Of the 2,898 total housing units, the majority are owner-occupied, with 1,923 owner-occupied and 873 renter-occupied units.
The unemployment rate in Marengo is 8.8% and the poverty rate is 15.6%. 16.5% of residents hold a bachelor's degree or higher. The average commute time is 28.2 minutes.
Cost of Living in Marengo, IL
Compared to national averages, Marengo has a median household income of $72,586 (3% below the national median of $75,149). Home values average $206,100, which is 16% below the national median. Monthly rent at $1,077 is 7% below the US average of $1,163. Within Illinois, Marengo's income is 3% below the state average of $75,072, and home values are 24% above the state median of $165,779.
Why Live in Marengo, IL?
Marengo offers affordable housing with a median home value of $206,100, below the US average of $244,900, and rent that’s lower than the national average at $1,077/month.
Potential considerations include median household income ($72,586) that falls below the national average. However, Marengo’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Marengo has a population of 7,123 with a median age of 33.3 years. Compare Marengo with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Marengo
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Sandwich | 7,121 | $77,027 | $239,600 | Compare |
| University Park | 7,109 | $65,580 | $137,800 | Compare |
| West Frankfort | 7,156 | $48,143 | $72,500 | Compare |
| Greenville | 7,159 | $52,727 | $119,800 | Compare |
| Benton | 7,076 | $51,349 | $85,100 | Compare |
| Clinton | 7,012 | $55,960 | $101,200 | Compare |
| Robinson | 7,005 | $67,591 | $102,600 | Compare |
| Stickney | 6,957 | $67,307 | $236,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Marengo
What is the population of Marengo, IL?
The population of Marengo, IL is 7,123 according to the latest Census data.
What is the median household income in Marengo?
The median household income in Marengo, IL is $72,586 per year.
What is the median home value in Marengo?
The median home value in Marengo, IL is $206,100.
What is the average rent in Marengo?
The median monthly rent in Marengo, IL is $1,077.
What is the unemployment rate in Marengo?
The unemployment rate in Marengo, IL is 8.8%.