Calumet city, Iowa
Official LSAD Designation: Calumet city • Census GEOID: 1910090
• O'Brien County
Calumet city is an incorporated city in O'Brien County, Iowa. According to official records from the Census (2025), Calumet city had an estimated population of 144 residents. Official Census Bureau geographic records classify this community under LSAD designation Calumet city (GEOID 1910090).
Local Government Administration U.S. Census Bureau GMAF
City Of Calumet
Municipal
Official Title:
City Clerk
Address:
PO BOX 131, CALUMET IA 51009-0131
County Of O'brien
County
Official Title:
Chairman
Address:
PO BOX 380, PRIMGHAR IA 51245
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 144 | 2025 |
| Median Household Income | $58,750 | 2020-2024 |
| Median Home Value | $83,300 | 2020-2024 |
| Land Area | 0.27 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).