| Index | Rock Falls | Illinois | National |
| Median home price | $71,600 | $174,800 | $184,700 |
| Median rent asked | $658 | $925 | $949 |
| Avg. people per household | 2.2 | 2.6 | 2.6 |
| Owner occupied households | 64.2% | 66.0% | 63.6% |
| Renter occupied households | 35.8% | 34.0% | 36.4% |
| Population | Home Price | National Avg. | |
| Deer Grove, IL | 33 | $59,200 | 68% |
| Nelson, IL | 132 | $75,000 | 59% |
| Milledgeville, IL | 987 | $77,000 | 58% |
| Tampico, IL | 771 | $78,700 | 57% |
| Harmon, IL | 146 | $82,500 | 55% |
| Rock Falls, IL | 8,914 | $71,600 | 61% |
| Population | Home Price | National Avg. | |
| Mahopac, NY | 8,914 | $375,700 | 103% |
| Berkeley, MO | 8,912 | $63,100 | 66% |
| Monmouth Junction, NJ | 8,911 | $442,200 | 139% |
| Terrace Heights, WA | 8,917 | $240,300 | 30% |
| Alma, MI | 8,918 | $85,100 | 54% |
| Rock Falls, IL | 8,914 | $71,600 | 61% |
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