| Median Foreclosure: | $74,500 |
| Median For Sale: | $74,500 |
| Median Land: | $159,000 |
| Population | 326 |
| Square Miles | 0.84 |
| Population Density | 389.95 |
| Median Age | 41 |
| Median Household Income | $35,500 |
| Per Capita Income | $17,937 |
| Median Rent | $211 |
| Percent Renters | 30% |
| Median Marble Rock, IA For Sale Price: | $74,500 |
| 2 Bedroom For Sale Median Price: | $74,500 |
| 3 Bedroom For Sale Median Price: | $138,000 |
| Median Marble Rock, IA Foreclosure Price: | $74,500 |
| 2 Bedroom Foreclosure Median Price: | $74,500 |
| 3 Bedroom Foreclosure Median Price: | $20,500 |