| Index | Crystal Lake | Illinois | National |
| Income per capita | $60,366 | $47,397 | $44,883 |
| Median household income | $136,941 | $88,967 | $81,333 |
| Median income owner occupied | $162,233 | $111,557 | $106,172 |
| Median income renter occupied | $73,519 | $52,117 | $52,080 |
| Median earnings male | $78,769 | $60,185 | $54,343 |
| Median earnings female | $46,487 | $40,368 | $38,439 |
| Unemployment rate | 3.4% | 6.6% | 4.9% |
| Poverty level | 6.6% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 11.3% | 11.3% |
| Manufacturing sector | 17.0% | 17.0% |
| Financial & insurance services | 4.8% | 4.8% |
| Wholesale & retail services | 15.0% | 15.0% |
| Public administration | 4.9% | 4.9% |
| Transportation, warehousing & utilities | 6.6% | 6.6% |
| Education, health & social services | 9.6% | 9.6% |
| Other | 27.9% | 27.9% |
| City | Population | Household Income | National Avg. |
| Kildeer, IL | 4,158 | $320,299 | 293.8% |
| Hawthorn Woods, IL | 8,495 | $305,140 | 275.2% |
| North Barrington, IL | 2,886 | $292,563 | 259.7% |
| Trout Valley, IL | 522 | $287,475 | 253.5% |
| Inverness, IL | 8,231 | $281,537 | 246.2% |
| Crystal Lake, IL | 40,724 | $136,941 | 68.4% |
| City | Population | Household Income | National Avg. |
| Essex, MD | 40,724 | $88,588 | 8.9% |
| New Berlin, WI | 40,724 | $129,824 | 59.6% |
| Germantown, TN | 40,725 | $182,733 | 124.7% |
| Sumter, SC | 40,739 | $61,655 | 24.2% |
| Plant City, FL | 40,706 | $80,312 | 1.3% |
| Crystal Lake, IL | 40,724 | $136,941 | 68.4% |