Calmar is a city in Winneshiek County, Iowa, home to about 974 people across 1.1 square miles. Its ZIP code is 52132.
Homes sold for a median of $124 per square foot in the three months ending August 2026, a seller’s market.
Mostly Calmar; also Spillville
Each card is that ZIP code’s whole market, including any part outside Calmar. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Calmar’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)133 miles away |
|---|---|
| Closer regional airport | Waterloo Regional Airport (ALO)51 miles away |
| Nearest city of 250,000+ | Madison, WI125 miles away |
| Nearest city of 1 million+ | Chicago, IL235 miles away |
Straight-line distances from the center of Calmar; 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.
Calmar had 1,125 residents in the 2020 census, up 6% since 2000.
It’s the 291st largest of 1,019 towns in Iowa by population.
Winneshiek County grew from 23,731 residents in 1900 to 20,070 in 2020.
Winneshiek 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 37.7 inches of rain and melted snow fall in a typical year, with about 38 inches of snow.
Source: NOAA 1991–2020 climate normals, Decorah, IA weather station (9 miles away).
9,065 jobs at 604 businesses in Winneshiek County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
9 doctors and other health care providers list an office in Calmar.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Dentists | 1 |
| Nurse practitioners and physician assistants | 4 |
| Mental health providers | 1 |
| Chiropractors | 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.
Libraries
Museums
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.
Public schools here are run by South Winneshiek Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| South Winneshiek High SchoolCalmar | 9–12 | 205 | Public | 2.6 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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Shares ZIP codes with Spillville.
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.