| Index | Rock Falls | Iowa | National |
| Income per capita | $37,110 | $42,672 | $44,883 |
| Median household income | $66,824 | $81,387 | $81,333 |
| Median income owner occupied | $83,738 | $98,724 | $106,172 |
| Median income renter occupied | $0 | $45,890 | $52,080 |
| Median earnings male | $58,520 | $54,047 | $54,343 |
| Median earnings female | $30,825 | $36,462 | $38,439 |
| Unemployment rate | 1.7% | 3.2% | 4.9% |
| Poverty level | 8.7% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 22.0% | 22.0% |
| Manufacturing sector | 16.0% | 16.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 26.0% | 26.0% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 10.0% | 10.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 20.0% | 20.0% |
| City | Population | Household Income | National Avg. |
| Manly, IA | 1,533 | $97,968 | 20.5% |
| St. Ansgar, IA | 1,176 | $97,313 | 19.6% |
| Nora Springs, IA | 1,692 | $96,346 | 18.5% |
| Plymouth, IA | 483 | $93,145 | 14.5% |
| Hanlontown, IA | 199 | $91,837 | 12.9% |
| Rock Falls, IA | 167 | $66,824 | 17.8% |
| City | Population | Household Income | National Avg. |
| Tomales, CA | 167 | $165,298 | 103.2% |
| Westphalia, IA | 167 | $120,484 | 48.1% |
| Ferris, IL | 167 | $64,381 | 20.8% |
| Colburn, IN | 167 | $44,725 | 45.0% |
| Damar, KS | 167 | $54,372 | 33.1% |
| Rock Falls, IA | 167 | $66,824 | 17.8% |