| Index | Rock City | Illinois | National |
| Income per capita | $35,833 | $47,397 | $44,883 |
| Median household income | $75,101 | $88,967 | $81,333 |
| Median income owner occupied | $89,615 | $111,557 | $106,172 |
| Median income renter occupied | $45,551 | $52,117 | $52,080 |
| Median earnings male | $50,682 | $60,185 | $54,343 |
| Median earnings female | $41,218 | $40,368 | $38,439 |
| Unemployment rate | 2.1% | 6.6% | 4.9% |
| Poverty level | 7.9% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 15.6% | 15.6% |
| Manufacturing sector | 23.3% | 23.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 15.6% | 15.6% |
| Public administration | 14.4% | 14.4% |
| Transportation, warehousing & utilities | 6.7% | 6.7% |
| Education, health & social services | 4.4% | 4.4% |
| Other | 20.0% | 20.0% |
| City | Population | Household Income | National Avg. |
| Lake Summerset, IL | 2,026 | $138,803 | 70.7% |
| Winnebago, IL | 3,610 | $125,851 | 54.7% |
| Orfordville, WI | 1,507 | $109,435 | 34.6% |
| Dakota, IL | 741 | $96,680 | 18.9% |
| Pecatonica, IL | 2,002 | $93,030 | 14.4% |
| Rock City, IL | 363 | $75,101 | 7.7% |
| City | Population | Household Income | National Avg. |
| Humphrey, AR | 363 | $64,080 | 21.2% |
| New Meadows, ID | 363 | $77,180 | 5.1% |
| Grand Detour, IL | 363 | $100,304 | 23.3% |
| Uniontown, KS | 363 | $61,534 | 24.3% |
| Spottsville, KY | 363 | $108,522 | 33.4% |
| Rock City, IL | 363 | $75,101 | 7.7% |