| Index | Third Lake | Illinois | National |
| Income per capita | $79,142 | $47,397 | $44,883 |
| Median household income | $204,409 | $88,967 | $81,333 |
| Median income owner occupied | $202,483 | $111,557 | $106,172 |
| Median income renter occupied | $159,075 | $52,117 | $52,080 |
| Median earnings male | $96,280 | $60,185 | $54,343 |
| Median earnings female | $52,309 | $40,368 | $38,439 |
| Unemployment rate | 0.8% | 6.6% | 4.9% |
| Poverty level | 4.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 5.2% | 5.2% |
| Manufacturing sector | 15.7% | 15.7% |
| Financial & insurance services | 8.0% | 8.0% |
| Wholesale & retail services | 14.2% | 14.2% |
| Public administration | 2.8% | 2.8% |
| Transportation, warehousing & utilities | 6.2% | 6.2% |
| Education, health & social services | 13.2% | 13.2% |
| Other | 34.8% | 34.8% |
| City | Population | Household Income | National Avg. |
| Riverwoods, IL | 3,636 | $342,690 | 321.3% |
| Kildeer, IL | 4,158 | $320,299 | 293.8% |
| Long Grove, IL | 8,145 | $313,087 | 284.9% |
| Hawthorn Woods, IL | 8,495 | $305,140 | 275.2% |
| North Barrington, IL | 2,886 | $292,563 | 259.7% |
| Third Lake, IL | 1,192 | $204,409 | 151.3% |
| City | Population | Household Income | National Avg. |
| Arlington, GA | 1,192 | $50,478 | 37.9% |
| Kaumakani, HI | 1,192 | $109,915 | 35.1% |
| Millers Falls, MA | 1,192 | $80,086 | 1.5% |
| Ninnekah, OK | 1,192 | $86,765 | 6.7% |
| Hawley, PA | 1,192 | $57,352 | 29.5% |
| Third Lake, IL | 1,192 | $204,409 | 151.3% |