Cairo city, Illinois
Official LSAD Designation: Cairo city • Census GEOID: 1710383
• Alexander County
Cairo city is an incorporated city in Alexander County, Illinois. According to official records from the Census (2025), Cairo city had an estimated population of 1,515 residents. Official Census Bureau geographic records classify this community under LSAD designation Cairo city (GEOID 1710383).
Local Government Administration U.S. Census Bureau GMAF
City Of Cairo
Municipal
Official Title:
Mayor
Address:
1501 WASHINGTON AVE, CAIRO IL 62914-1811
County Of Alexander
County
Official Title:
Alexander County Treasurer
Address:
2000 WASHINGTON AVE, CAIRO IL 62914-1717
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 1,515 | 2025 |
| Median Household Income | $41,912 | 2020-2024 |
| Median Home Value | $32,000 | 2020-2024 |
| Land Area | 6.99 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).