Marble Rock city, Iowa
Official LSAD Designation: Marble Rock city • Census GEOID: 1949305
• Floyd County
Marble Rock city is an incorporated city in Floyd County, Iowa. According to official records from the Census (2025), Marble Rock city had an estimated population of 255 residents. Official Census Bureau geographic records classify this community under LSAD designation Marble Rock city (GEOID 1949305).
Local Government Administration U.S. Census Bureau GMAF
City Of Marble Rock
Municipal
Official Title:
Mayor
Address:
PO BOX 98, MARBLE ROCK IA 50653-0098
County Of Floyd
County
Official Title:
Deputy Auditor
Address:
101 S MAIN ST, STE 302, CHARLES CITY IA 50616-2756
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 255 | 2025 |
| Median Household Income | $65,625 | 2020-2024 |
| Median Home Value | $76,000 | 2020-2024 |
| Land Area | 0.83 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).