Ottosen is a city in Humboldt County, Iowa, home to about 31 people across 0.5 square miles. It has no ZIP code of its own: it’s part of 50570.
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| Nearest major airport | Des Moines International Airport (DSM)100 miles away |
|---|---|
| Closer regional airport | Fort Dodge Regional Airport (FOD)24 miles away |
| Nearest city of 250,000+ | Omaha, NE141 miles away |
| Nearest city of 1 million+ | Chicago, IL349 miles away |
Straight-line distances from the center of Ottosen; 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.
Ottosen had 40 residents in the 2020 census, down 34% since 2000.
It’s the 978th largest of 1,019 towns in Iowa by population.
Humboldt County grew from 12,667 residents in 1900 to 9,597 in 2020.
Humboldt County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 81°F in summer, and winter lows average 9°F. About 35 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Humboldt Wtp, IA weather station (13 miles away).
3,111 jobs at 305 businesses in Humboldt 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 Ottosen.
Nearest hospitals
Providers with an office here
| Physical and occupational therapists | 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
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.
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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.