Cairo is a village in Allen County, Ohio, home to about 581 people across 0.3 square miles. Its ZIP code is 45820.
All in Cairo
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| Nearest major airport | John Glenn Columbus International Airport (CMH)85 miles away |
|---|---|
| Closer regional airport | Eugene F. Kranz Toledo Express Airport (TOL)54 miles away |
| Nearest city of 250,000+ | Fort Wayne, IN58 miles away |
| Nearest city of 1 million+ | Chicago, IL199 miles away |
Straight-line distances from the center of Cairo; 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.
Cairo had 517 residents in the 2020 census, up 4% since 2000.
It’s the 844th largest of 1,264 towns in Ohio by population.
Allen County grew from 47,976 residents in 1900 to 102,206 in 2020.
Allen 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 19°F. About 41.1 inches of rain and melted snow fall in a typical year, with about 19 inches of snow.
Source: NOAA 1991–2020 climate normals, Lima Wwtp, OH weather station (8 miles away).
44,251 jobs at 2,239 businesses in Allen County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (1 nearby)
Grocery stores
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.
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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.