| Index | Northbrook | Illinois | National |
| Income per capita | $110,165 | $47,397 | $44,883 |
| Median household income | $192,686 | $88,967 | $81,333 |
| Median income owner occupied | $217,389 | $111,557 | $106,172 |
| Median income renter occupied | $110,760 | $52,117 | $52,080 |
| Median earnings male | $147,533 | $60,185 | $54,343 |
| Median earnings female | $69,122 | $40,368 | $38,439 |
| Unemployment rate | 1.3% | 6.6% | 4.9% |
| Poverty level | 3.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 3.6% | 3.6% |
| Manufacturing sector | 10.4% | 10.4% |
| Financial & insurance services | 16.5% | 16.5% |
| Wholesale & retail services | 12.3% | 12.3% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 4.5% | 4.5% |
| Education, health & social services | 16.8% | 16.8% |
| Other | 31.5% | 31.5% |
| City | Population | Household Income | National Avg. |
| Winnetka, IL | 12,825 | $376,531 | 362.9% |
| Kenilworth, IL | 2,429 | $355,721 | 337.4% |
| 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% |
| Northbrook, IL | 33,971 | $192,686 | 136.9% |
| City | Population | Household Income | National Avg. |
| Springfield, VA | 33,971 | $156,555 | 92.5% |
| Florence, KY | 33,960 | $89,319 | 9.8% |
| Pikesville, MD | 33,960 | $128,955 | 58.6% |
| Fruit Cove, FL | 33,956 | $161,552 | 98.6% |
| Salisbury, MD | 33,988 | $67,304 | 17.2% |
| Northbrook, IL | 33,971 | $192,686 | 136.9% |