Winthrop city, Iowa
Official LSAD Designation: Winthrop city • Census GEOID: 1986565
• Buchanan County
Winthrop city is an incorporated city in Buchanan County, Iowa. According to official records from the Census (2025), Winthrop city had an estimated population of 823 residents. Official Census Bureau geographic records classify this community under LSAD designation Winthrop city (GEOID 1986565).
Local Government Administration U.S. Census Bureau GMAF
City Of Winthrop
Municipal
Official Title:
City Clerk
Address:
PO BOX 98, WINTHROP IA 50682-0098
County Of Buchanan
County
Official Title:
County Auditor
Address:
PO BOX 317, INDEPENDENCE IA 50644-0317
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 823 | 2025 |
| Median Household Income | $69,792 | 2020-2024 |
| Median Home Value | $158,200 | 2020-2024 |
| Land Area | 0.79 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).