Keystone city, Iowa
Official LSAD Designation: Keystone city • Census GEOID: 1941115
• Benton County
Keystone city is an incorporated city in Benton County, Iowa. According to official records from the Census (2025), Keystone city had an estimated population of 617 residents. Official Census Bureau geographic records classify this community under LSAD designation Keystone city (GEOID 1941115).
Local Government Administration U.S. Census Bureau GMAF
City Of Keystone
Municipal
Official Title:
Mayor
Address:
PO BOX 215, KEYSTONE IA 52249-0215
County Of Benton
County
Official Title:
Chairman
Address:
111 E 4TH ST, STE 3, VINTON IA 52349-1738
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 617 | 2025 |
| Median Household Income | $67,500 | 2020-2024 |
| Median Home Value | $148,400 | 2020-2024 |
| Land Area | 0.45 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).