| Index | Prairie Grove | Illinois | National |
| Income per capita | $92,376 | $47,397 | $44,883 |
| Median household income | $164,471 | $88,967 | $81,333 |
| Median income owner occupied | $184,773 | $111,557 | $106,172 |
| Median income renter occupied | $93,781 | $52,117 | $52,080 |
| Median earnings male | $117,624 | $60,185 | $54,343 |
| Median earnings female | $67,421 | $40,368 | $38,439 |
| Unemployment rate | 2.9% | 6.6% | 4.9% |
| Poverty level | 4.8% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 9.3% | 9.3% |
| Manufacturing sector | 16.2% | 16.2% |
| Financial & insurance services | 7.1% | 7.1% |
| Wholesale & retail services | 21.1% | 21.1% |
| Public administration | 1.0% | 1.0% |
| Transportation, warehousing & utilities | 6.3% | 6.3% |
| Education, health & social services | 7.1% | 7.1% |
| Other | 30.4% | 30.4% |
| City | Population | Household Income | National Avg. |
| 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% |
| Trout Valley, IL | 522 | $287,475 | 253.5% |
| Prairie Grove, IL | 2,089 | $164,471 | 102.2% |
| City | Population | Household Income | National Avg. |
| Pahala, HI | 2,089 | $72,472 | 10.9% |
| Grove Hill, AL | 2,088 | $72,724 | 10.6% |
| Fort Denaud, FL | 2,088 | $89,692 | 10.3% |
| Washington Park, FL | 2,088 | $54,601 | 32.9% |
| Ortonville, MN | 2,090 | $69,862 | 14.1% |
| Prairie Grove, IL | 2,089 | $164,471 | 102.2% |