| Index | Twin Grove | Illinois | National |
| Income per capita | $50,279 | $31,502 | $29,829 |
| Median household income | $109,191 | $59,196 | $55,322 |
| Median income owner occupied | $113,750 | $75,354 | $70,586 |
| Median income renter occupied | $0 | $34,488 | $35,192 |
| Median earnings male | $75,096 | $40,474 | $36,919 |
| Median earnings female | $45,179 | $27,197 | $26,250 |
| Unemployment rate | 2.9% | 5.3% | 4.7% |
| 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 | 2,128 | $96,538 | 74.5% |
| Downs, IL | 1,417 | $92,288 | 66.8% |
| Goodfield, IL | 977 | $89,167 | 61.2% |
| Kappa, IL | 225 | $87,500 | 58.2% |
| Heritage Lake, IL | 1,664 | $87,358 | 57.9% |
| Twin Grove, IL | 1,243 | $109,191 | 97.4% |
| City | Population | Household Income | National Avg. |
| Coldstream, KY | 1,243 | $73,000 | 32.0% |
| Granville South, OH | 1,243 | $113,125 | 104.5% |
| Haverford College, PA | 1,243 | $176,397 | 218.9% |
| Astor, FL | 1,242 | $62,321 | 12.7% |
| Laupahoehoe, HI | 1,242 | $57,708 | 4.3% |
| Twin Grove, IL | 1,243 | $109,191 | 97.4% |