| Index | Rock Falls | Illinois | National |
| Income per capita | $39,163 | $47,397 | $44,883 |
| Median household income | $67,073 | $88,967 | $81,333 |
| Median income owner occupied | $85,924 | $111,557 | $106,172 |
| Median income renter occupied | $35,639 | $52,117 | $52,080 |
| Median earnings male | $53,962 | $60,185 | $54,343 |
| Median earnings female | $32,897 | $40,368 | $38,439 |
| Unemployment rate | 3.9% | 6.6% | 4.9% |
| Poverty level | 18.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 5.5% | 5.5% |
| Manufacturing sector | 40.7% | 40.7% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 12.2% | 12.2% |
| Public administration | 3.6% | 3.6% |
| Transportation, warehousing & utilities | 11.2% | 11.2% |
| Education, health & social services | 3.9% | 3.9% |
| Other | 21.7% | 21.7% |
| City | Population | Household Income | National Avg. |
| Como, IL | 536 | $119,912 | 47.4% |
| Grand Detour, IL | 363 | $100,304 | 23.3% |
| Prophetstown, IL | 2,007 | $91,198 | 12.1% |
| Morrison, IL | 3,961 | $88,298 | 8.6% |
| Ohio, IL | 520 | $88,196 | 8.4% |
| Rock Falls, IL | 9,152 | $67,073 | 17.5% |
| City | Population | Household Income | National Avg. |
| Pineville, NC | 9,151 | $78,986 | 2.9% |
| Port Wentworth, GA | 9,153 | $112,407 | 38.2% |
| Plainedge, NY | 9,149 | $173,965 | 113.9% |
| Willow Street, PA | 9,148 | $130,038 | 59.9% |
| Lorraine, QC | 9,148 | n/a | |
| Rock Falls, IL | 9,152 | $67,073 | 17.5% |