Schleswig is a city in Crawford County, Iowa, home to about 831 people across 1.2 square miles. Its ZIP code is 51461.
Mostly Schleswig
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| Nearest major airport | Eppley Airfield (OMA)64 miles away |
|---|---|
| Closer regional airport | Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)51 miles away |
| Nearest city of 250,000+ | Omaha, NE70 miles away |
| Nearest city of 1 million+ | Chicago, IL399 miles away |
Straight-line distances from the center of Schleswig; 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.
Schleswig had 830 residents in the 2020 census, up 0% since 2000.
It’s the 337th largest of 1,019 towns in Iowa by population.
Crawford County grew from 21,685 residents in 1900 to 16,525 in 2020.
Crawford County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 10°F. About 33.6 inches of rain and melted snow fall in a typical year, with about 35 inches of snow.
Source: NOAA 1991–2020 climate normals, Denison, IA weather station (11 miles away).
5,121 jobs at 415 businesses in Crawford County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Schleswig.
Nearest hospitals
Providers with an office here
| Chiropractors | 1 |
|---|
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 (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.
Public schools here are run by Schleswig Comm School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Schleswig Elementary SchoolSchleswig | K–4 | 75 | Public | 0.8 mi |
| Schleswig Middle SchoolSchleswig | 5–8 | 51 | Public | 0.8 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.