| Index | Brook | Indiana | National |
| Income per capita | $28,693 | $39,271 | $44,883 |
| Median household income | $64,458 | $75,463 | $81,333 |
| Median income owner occupied | $66,155 | $93,561 | $106,172 |
| Median income renter occupied | $42,540 | $44,330 | $52,080 |
| Median earnings male | $42,221 | $53,211 | $54,343 |
| Median earnings female | $27,585 | $34,936 | $38,439 |
| Unemployment rate | 2.9% | 4.6% | 4.9% |
| Poverty level | 21.7% | 15.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 14.1% | 14.1% |
| Manufacturing sector | 40.9% | 40.9% |
| Financial & insurance services | 0.5% | 0.5% |
| Wholesale & retail services | 14.1% | 14.1% |
| Public administration | 1.4% | 1.4% |
| Transportation, warehousing & utilities | 10.0% | 10.0% |
| Education, health & social services | 4.1% | 4.1% |
| Other | 15.0% | 15.0% |
| City | Population | Household Income | National Avg. |
| Iroquois, IL | 293 | $91,653 | 12.7% |
| Remington, IN | 1,432 | $85,638 | 5.3% |
| Earl Park, IN | 361 | $80,048 | 1.6% |
| Kentland, IN | 1,872 | $74,190 | 8.8% |
| Beaverville, IL | 383 | $73,384 | 9.8% |
| Brook, IN | 1,023 | $64,458 | 20.7% |
| City | Population | Household Income | National Avg. |
| Cresson, TX | 1,023 | $98,417 | 21.0% |
| Improvement District No. 9 Banff, AB | 1,023 | n/a | |
| Geraldine, AL | 1,024 | $61,096 | 24.9% |
| Hayneville, AL | 1,022 | $35,920 | 55.8% |
| Green Valley CDP (Los Angeles County), CA | 1,024 | $108,306 | 33.2% |
| Brook, IN | 1,023 | $64,458 | 20.7% |