| Index | Winthrop Harbor | Illinois | National |
| Income per capita | $59,919 | $47,397 | $44,883 |
| Median household income | $123,488 | $88,967 | $81,333 |
| Median income owner occupied | $141,770 | $111,557 | $106,172 |
| Median income renter occupied | $90,458 | $52,117 | $52,080 |
| Median earnings male | $69,470 | $60,185 | $54,343 |
| Median earnings female | $56,075 | $40,368 | $38,439 |
| Unemployment rate | 8.0% | 6.6% | 4.9% |
| Poverty level | 2.2% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.8% | 10.8% |
| Manufacturing sector | 29.5% | 29.5% |
| Financial & insurance services | 1.9% | 1.9% |
| Wholesale & retail services | 17.6% | 17.6% |
| Public administration | 2.1% | 2.1% |
| Transportation, warehousing & utilities | 12.5% | 12.5% |
| Education, health & social services | 4.1% | 4.1% |
| Other | 21.1% | 21.1% |
| City | Population | Household Income | National Avg. |
| Lake Bluff, IL | 5,703 | $263,624 | 224.1% |
| Libertyville, IL | 20,905 | $226,599 | 178.6% |
| Third Lake, IL | 1,192 | $204,409 | 151.3% |
| Knollwood, IL | 1,738 | $188,266 | 131.5% |
| Grandwood Park, IL | 5,247 | $186,894 | 129.8% |
| Winthrop Harbor, IL | 6,826 | $123,488 | 51.8% |
| City | Population | Household Income | National Avg. |
| South Monrovia Island, CA | 6,826 | $134,487 | 65.4% |
| Barnesville, GA | 6,826 | $51,735 | 36.4% |
| Trinity, NC | 6,824 | $89,153 | 9.6% |
| Louiseville, QC | 6,831 | n/a | |
| Guadalupe, AZ | 6,820 | $63,657 | 21.7% |
| Winthrop Harbor, IL | 6,826 | $123,488 | 51.8% |