Illinois · Census place 46786
Marengo, IL population, income and ZIP codes
Quick answer
The population of the city of Marengo, Illinois (Marengo, IL — Census place “Marengo city”) is 7,123 residents, ranking #279 of 1462 places in Illinois. Median household income is $72,586, the median home is worth $206,100 and median gross rent runs $1,077 a month. Looking for the Marengo Illinois ZIP code list? 1 ZIP codes serve Marengo, IL: 60152.
- Population
- 7,123Marengo city residents
- Median household income
- $72,586Past 12 months, inflation adjusted
- Median home value
- $206,100Owner-occupied units
- Median gross rent
- $1,077Rent plus utilities, monthly
- Median age
- 33.3 yrsAll residents
- Homeownership rate
- 68.8%Owner-occupied households
Marengo ZIP codes (Illinois)
Census ZCTAs whose delivery area overlaps Marengo.
The Marengo IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Marengo city
Housing cost measured against local earnings.
A household earning the Marengo city median would spend about 17.8% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 2.8× the median household income; nationally that ratio sits near 4.5×. Poverty affects 15.6% of residents and 68.8% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Marengo city, IL in context
How this area compares with national benchmarks.
Marengo city is a mid-size town in Illinois, with 7,123 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #279 of 1,462 ranked by population — larger than 80% of them. The median age here is 33.3 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Marengo city earn a median of $72,586 a year, 7.6% below the national figure of $78,538 and within a couple of points of the $74,244 median for the 698 Illinois cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 15.6% of residents here, above the 12.4% national rate.
The typical owner-occupied home in Marengo city is valued at $206,100, 32.1% below the national figure and 15% above the $179,100 peer median, while median gross rent runs $1,077 a month, 23.4% below the national figure, or roughly $12,924 across a full year. A household on the local median income would put about 17.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.8×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 68.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in Illinois.
- Sandwich city 7,121
- West Frankfort city 7,156
- University Park village 7,109
- Greenville city 7,159
- Benton city 7,076
- Salem city 7,341
- Clinton city 7,012
- Jerseyville city 7,432
Keep going
More Illinois coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Marengo city?
- Marengo city has 7,123 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #279 of 1,462 in Illinois.
- What is the median household income in Marengo city?
- Median household income in Marengo city is $72,586 a year, 7.6% below the national figure of $78,538.
- How much does it cost to rent or buy in Marengo city?
- Median gross rent is $1,077 a month and the median home value is $206,100, so rent absorbs about 17.8% of median household income.
- Is Marengo city affordable compared with the rest of the US?
- Homes cost about 2.8× the local median income here versus roughly 3.9× nationally, so Marengo city is more affordable to buy in than the typical US market, and rent takes 17.8% of median income against the 30% cost-burden line.
- How current is this Marengo city data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.