| Index | Twin Grove | Illinois | National |
| Income per capita | $73,614 | $47,397 | $44,883 |
| Median household income | $162,578 | $88,967 | $81,333 |
| Median income owner occupied | $171,229 | $111,557 | $106,172 |
| Median income renter occupied | $0 | $52,117 | $52,080 |
| Median earnings male | $112,166 | $60,185 | $54,343 |
| Median earnings female | $66,309 | $40,368 | $38,439 |
| Unemployment rate | 4.1% | 6.6% | 4.9% |
| Poverty level | 6.6% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 30.3% | 30.3% |
| Manufacturing sector | 10.8% | 10.8% |
| Financial & insurance services | 25.9% | 25.9% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 2.4% | 2.4% |
| Transportation, warehousing & utilities | 8.4% | 8.4% |
| Education, health & social services | 6.7% | 6.7% |
| Other | 15.5% | 15.5% |
| City | Population | Household Income | National Avg. |
| Hudson, IL | 2,173 | $144,640 | 77.8% |
| Downs, IL | 1,446 | $138,056 | 69.7% |
| Goodfield, IL | 1,006 | $133,304 | 63.9% |
| Kappa, IL | 234 | $132,968 | 63.5% |
| Heritage Lake, IL | 1,712 | $131,363 | 61.5% |
| Twin Grove, IL | 1,271 | $162,578 | 99.9% |
| City | Population | Household Income | National Avg. |
| Wamac, IL | 1,271 | $49,266 | 39.4% |
| Morse, LA | 1,271 | $120,921 | 48.7% |
| Stoneville, NC | 1,271 | $70,122 | 13.8% |
| Arenas Valley, NM | 1,271 | $79,435 | 2.3% |
| Millersport, OH | 1,271 | $92,309 | 13.5% |
| Twin Grove, IL | 1,271 | $162,578 | 99.9% |