| Index | Crystal Lake | Iowa | National |
| Income per capita | $39,839 | $42,672 | $44,883 |
| Median household income | $95,718 | $81,387 | $81,333 |
| Median income owner occupied | $118,883 | $98,724 | $106,172 |
| Median income renter occupied | $53,390 | $45,890 | $52,080 |
| Median earnings male | $66,191 | $54,047 | $54,343 |
| Median earnings female | $64,873 | $36,462 | $38,439 |
| Unemployment rate | 3.2% | 3.2% | 4.9% |
| Poverty level | 12.5% | 12.3% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 10.5% | 10.5% |
| Manufacturing sector | 58.1% | 58.1% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 18.6% | 18.6% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 11.6% | 11.6% |
| Education, health & social services | 1.2% | 1.2% |
| Other | 0.0% | 0.0% |
| City | Population | Household Income | National Avg. |
| St. Benedict, IA | 25 | $96,780 | 19.0% |
| Duncan, IA | 104 | $93,977 | 15.5% |
| Garner, IA | 3,134 | $93,156 | 14.5% |
| Wesley, IA | 461 | $85,211 | 4.8% |
| Lake Mills, IA | 2,187 | $78,482 | 3.5% |
| Crystal Lake, IA | 269 | $95,718 | 17.7% |
| City | Population | Household Income | National Avg. |
| Industry, CA | 269 | $128,123 | 57.5% |
| Lineville, IA | 269 | $76,758 | 5.6% |
| Magnolia, IL | 269 | $79,844 | 1.8% |
| Jeff, KY | 269 | $0 | 100.0% |
| Heflin, LA | 269 | $80,812 | 0.6% |
| Crystal Lake, IA | 269 | $95,718 | 17.7% |