Sandwich city, Illinois
Official LSAD Designation: Sandwich city • Census GEOID: 1767548
• DeKalb County / Kendall County
Sandwich city is an incorporated city in DeKalb County, Kendall County, Illinois. According to official records from the Census (2025), Sandwich city had an estimated population of 7,380 residents. Official Census Bureau geographic records classify this community under LSAD designation Sandwich city (GEOID 1767548).
Local Government Administration U.S. Census Bureau GMAF
City Of Sandwich
Municipal
Official Title:
City Clerk
Address:
144 E RAILROAD ST, SANDWICH IL 60548-2192
County Of Dekalb
County
Official Title:
County Administrator
Address:
200 N MAIN ST, SYCAMORE IL 60178-1431
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 7,380 | 2025 |
| Median Household Income | $80,768 | 2020-2024 |
| Median Home Value | $255,700 | 2020-2024 |
| Land Area | 4.77 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).