| Index | Crystal Lake | Illinois | National |
| Median home price | $233,400 | $174,800 | $184,700 |
| Median rent asked | $1,224 | $925 | $949 |
| Avg. people per household | 2.6 | 2.6 | 2.6 |
| Owner occupied households | 75.9% | 66.0% | 63.6% |
| Renter occupied households | 24.1% | 34.0% | 36.4% |
| Population | Home Price | National Avg. | |
| Round Lake Park, IL | 7,744 | $120,100 | 35% |
| Harvard, IL | 9,203 | $128,000 | 31% |
| McCullom Lake, IL | 1,193 | $138,800 | 25% |
| Round Lake Beach, IL | 27,313 | $149,000 | 19% |
| Long Lake, IL | 3,065 | $151,900 | 18% |
| Crystal Lake, IL | 39,685 | $233,400 | 26% |
| Population | Home Price | National Avg. | |
| Marlborough, MA | 39,663 | $365,200 | 98% |
| Romeoville, IL | 39,644 | $198,800 | 8% |
| Indian Trail, NC | 39,644 | $238,800 | 29% |
| Royal Palm Beach, FL | 39,615 | $284,600 | 54% |
| Sumter, SC | 39,758 | $131,800 | 29% |
| Crystal Lake, IL | 39,685 | $233,400 | 26% |
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