Seneca village, Illinois
Official LSAD Designation: Seneca village • Census GEOID: 1768640
• Grundy County / LaSalle County
Seneca village is an incorporated village in Grundy County, LaSalle County, Illinois. According to official records from the Census (2025), Seneca village had an estimated population of 2,310 residents. Official Census Bureau geographic records classify this community under LSAD designation Seneca village (GEOID 1768640).
Local Government Administration U.S. Census Bureau GMAF
Village Of Seneca
Municipal
Official Title:
Village Treas
Address:
340 N. CASH, SENECA IL 61360
County Of Grundy
County
Official Title:
Grundy County Treas
Address:
111 E WASHINGTON ST, ROOM 33, MORRIS IL 60450-2284
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 2,310 | 2025 |
| Median Household Income | $86,830 | 2020-2024 |
| Median Home Value | $227,500 | 2020-2024 |
| Land Area | 5.99 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).