Marengo is a city in McHenry County, Illinois, home to about 7,040 people across 8.5 square miles. Its ZIP code is 60152.
Homes sold for a median of $190 per square foot in the three months ending August 2026, a seller’s market.
Mostly Marengo; also Coral and Harmony
Each card is that ZIP code’s whole market, including any part outside Marengo. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Marengo’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Chicago O'Hare International Airport (ORD)40 miles away |
|---|---|
| Closer regional airport | Chicago Rockford International Airport (RFD)25 miles away |
| Nearest city of 250,000+ | Chicago, IL55 miles away |
Straight-line distances from the center of Marengo; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Marengo had 7,568 residents in the 2020 census, up 19% since 2000.
It’s the 282nd largest of 1,450 towns in Illinois by population.
McHenry County grew from 29,759 residents in 1900 to 310,229 in 2020.
McHenry County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 13°F. About 37.7 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.
Source: NOAA 1991–2020 climate normals, Marengo, IL weather station (about a mile away).
87,684 jobs at 8,140 businesses in McHenry County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
32 doctors and other health care providers list an office in Marengo.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Dentists | 4 |
| Nurse practitioners and physician assistants | 1 |
| Mental health providers | 9 |
| Physical and occupational therapists | 7 |
| Optometrists | 4 |
| Chiropractors | 4 |
| Pharmacies | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores (1 nearby)
Libraries (2 nearby)
Museums
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Marengo-Union E Cons D 165, Riley CCSD 18, Marengo CHSD 154. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Locust Elem SchoolMarengo | Pre-K–3 | 501 | Public | 0.5 mi |
| Riley Comm Cons SchoolMarengo | K–8 | 277 | Public | 3.8 mi |
| Ulysses S Grant Intermediate SchMarengo | 4–5 | 249 | Public | 0.6 mi |
| Marengo Comm Middle SchoolMarengo | 6–8 | 342 | Public | 0.6 mi |
| Marengo High SchoolMarengo | 9–12 | 685 | Public | 1.0 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Zion Lutheran SchoolMarengo | Pre-K–8 | 191 | Lutheran Church–Missouri Synod | 0.6 mi |
| Notre Dame AcademyMarengo | K–12 | 21 | Roman Catholic | 5.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Coral, Harmony and Riley.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.