Springfield city, Illinois
Official LSAD Designation: Springfield city • Census GEOID: 1772000
• Sangamon County
Springfield city is an incorporated city in Sangamon County, Illinois. According to official records from the Census (2025), Springfield city had an estimated population of 112,989 residents. Official Census Bureau geographic records classify this community under LSAD designation Springfield city (GEOID 1772000).
Local Government Administration U.S. Census Bureau GMAF
City Of Springfield
Municipal
Official Title:
Director, Office Of Budget And Mgmt.
Address:
300 S 7TH ST, STE 210, SPRINGFIELD IL 62701-1935
County Of Sangamon
County
Official Title:
Dep. Auditor
Address:
200 S 9TH ST, STE 201, SPRINGFIELD IL 62701-1967
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 112,989 | 2025 |
| Median Household Income | $66,064 | 2020-2024 |
| Median Home Value | $162,100 | 2020-2024 |
| Land Area | 61.33 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).