Le Mars is a city in Plymouth County, Iowa, home to about 10,640 people across 8.5 square miles. Its ZIP code is 51031.
Homes sold for a median of $145 per square foot in the three months ending August 2026, a seller’s market.
Mostly Le Mars; also Struble and Craig
Each card is that ZIP code’s whole market, including any part outside Le Mars. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Le Mars’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Eppley Airfield (OMA)104 miles away |
|---|---|
| Closer regional airport | Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)30 miles away |
| Nearest city of 250,000+ | Omaha, NE106 miles away |
| Nearest city of 1 million+ | Chicago, IL438 miles away |
Straight-line distances from the center of Le Mars; 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.
Le Mars had 10,571 residents in the 2020 census, up 14% since 2000.
It’s the 39th largest of 1,019 towns in Iowa by population.
Plymouth County grew from 22,209 residents in 1900 to 25,698 in 2020.
Plymouth County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 7°F. About 30 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.
Source: NOAA 1991–2020 climate normals, Le Mars, IA weather station (2 miles away).
10,405 jobs at 667 businesses in Plymouth County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
120 doctors and other health care providers list an office in Le Mars.
Nearest hospitals
Providers with an office here
| Primary care doctors | 14 |
|---|---|
| Specialist doctors | 5 |
| Dentists | 10 |
| Nurse practitioners and physician assistants | 18 |
| Mental health providers | 45 |
| Physical and occupational therapists | 10 |
| Optometrists | 6 |
| Chiropractors | 12 |
| Pharmacies | 7 |
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 (13 nearby)
Grocery stores (4 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (2 nearby)
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.
Established in 1869.
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 Le Mars Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Clark Elementary SchoolLe Mars | Pre-K–5 | 301 | Public | <0.1 mi |
| Franklin Elementary SchoolLe Mars | K–5 | 261 | Public | 0.7 mi |
| Kluckhohn Elementary SchoolLe Mars | K–5 | 407 | Public | 1.4 mi |
| Le Mars Middle SchoolLe Mars | 6–8 | 487 | Public | 1.1 mi |
| Individualized Learning CenterLe Mars | 9–12 | 39 | Alternative Education | 1.2 mi |
| Le Mars High SchoolLe Mars | 9–12 | 662 | Public | 1.0 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Gehlen Catholic SchoolLe Mars | Pre-K–12 | 496 | Roman Catholic | 0.8 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 Struble, Craig and Oyens.
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.