Eldorado city, Illinois
Official LSAD Designation: Eldorado city • Census GEOID: 1723009
• Saline County
Eldorado city is an incorporated city in Saline County, Illinois. According to official records from the Census (2025), Eldorado city had an estimated population of 3,579 residents. Official Census Bureau geographic records classify this community under LSAD designation Eldorado city (GEOID 1723009).
Local Government Administration U.S. Census Bureau GMAF
City Of Eldorado
Municipal
Official Title:
City Treasurer
Address:
901 4TH ST, ELDORADO IL 62930-1243
County Of Saline
County
Official Title:
Saline County Treasurer
Address:
10 E POPLAR ST, HARRISBURG IL 62946-1553
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 3,579 | 2025 |
| Median Household Income | $37,154 | 2020-2024 |
| Median Home Value | $66,200 | 2020-2024 |
| Land Area | 2.50 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).