Cairo, Allen County
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| City | Cairo |
| State | Ohio (OH) |
| County | Allen |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.831996 |
| Longitude | -84.086058 |
| Population | 581 |
| Density | 429.1 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 44721, 45820 |
| Area Code | 330, 234 |
| County Seat | Lima |
| School District | Bath Local School District |
Cairo is a locality in Allen County, Ohio, United States. It is a small community with a population of 581. The population density is 429.1 people per km². Cairo is located at 40.8320°N, 84.0861°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 45820.
Cairo rests in the heart of fertile plains, where the land, a rich loam the colour of dark chocolate, rolls gently towards distant horizons. It lies 6.3 miles north of Lima, OH (from Lima, OH: bearing 9°T), and is situated 6.8 miles east-north-east of Elida. Fields of emerald corn and golden wheat stretch as far as the eye can discern, punctuated by the sturdy silhouettes of farmhouses and the occasional cluster of wind-swept oaks. The air here carries a clean, earthy scent, especially after a summer rain, and the sky, a vast canvas, often displays a breathtaking palette of bruised purples and fiery oranges as the sun dips below the flat expanse. Evenings in Cairo settle with a profound quietude, broken only by the chirping chorus of crickets and the distant hum of a passing combine. The history of Cairo is intrinsically tied to the agricultural bounty of this region, a legacy passed down through generations of farming families who have cultivated this land with unwavering dedication. It was a place built on the promise of plentiful harvests, where the local economy has long been shaped by the cycles of planting and reaping, and the processing of grain and livestock. While the days of larger-scale agricultural operations may have shifted, a deep-rooted connection to the land persists, evident in the well-maintained barns and the enduring spirit of self-reliance that defines its residents. The quiet streets of Cairo hum with the steady pulse of everyday life, a testament to the enduring strength found in its agricultural heritage and the simple beauty of its rural setting.
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This page provides an embedded street and satellite map of Cairo, Ohio — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.831996, -84.086058. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Cairo and Allen County.
Detailed location data for Cairo includes the ZIP code (44721), telephone area code (330, 234), county seat of Allen County (Lima), and school district assignment (Bath Local School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Cairo is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |