Marengo is a city in Iowa County, Iowa, home to about 2,725 people across 2.1 square miles. Its ZIP code is 52301.
Homes sold for a median of $109 per square foot in the three months ending August 2026, a seller’s market.
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 | Des Moines International Airport (DSM)84 miles away |
|---|---|
| Closer regional airport | The Eastern Iowa Airport (CID)20 miles away |
| Nearest city of 250,000+ | Madison, WI162 miles away |
| Nearest city of 1 million+ | Chicago, IL226 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 2,435 residents in the 2020 census, down 4% since 2000.
It’s the 132nd largest of 1,019 towns in Iowa by population.
Iowa County grew from 19,544 residents in 1900 to 16,662 in 2020.
Iowa 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 10°F. About 37.8 inches of rain and melted snow fall in a typical year, with about 28 inches of snow.
Source: NOAA 1991–2020 climate normals, Williamsburg 1e, IA weather station (9 miles away).
7,366 jobs at 459 businesses in Iowa County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
29 doctors and other health care providers list an office in Marengo.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 3 |
| Nurse practitioners and physician assistants | 8 |
| Mental health providers | 5 |
| Physical and occupational therapists | 2 |
| Optometrists | 2 |
| Chiropractors | 1 |
| Pharmacies | 5 |
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.
Grocery stores (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Counts are within about 1 mile 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.
Established in 1845.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Iowa Valley Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Iowa Valley Elementary SchoolMarengo | Pre-K–6 | 314 | Public | 1.1 mi |
| Iowa Valley Jr-Sr High SchoolMarengo | 7–12 | 229 | Public | 0.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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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.