| Index | Gilliam | Missouri | National |
| Income per capita | $32,181 | $39,715 | $44,883 |
| Median household income | $48,968 | $72,613 | $81,333 |
| Median income owner occupied | $0 | $90,986 | $106,172 |
| Median income renter occupied | $0 | $45,210 | $52,080 |
| Median earnings male | $60,025 | $52,324 | $54,343 |
| Median earnings female | $42,236 | $36,971 | $38,439 |
| Unemployment rate | 4.3% | 4.4% | 4.9% |
| Poverty level | 14.9% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 29.5% | 29.5% |
| Manufacturing sector | 27.3% | 27.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 11.4% | 11.4% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 13.6% | 13.6% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 13.6% | 13.6% |
| City | Population | Household Income | National Avg. |
| Miami, MO | 105 | $114,516 | 40.8% |
| Arrow Rock, MO | 38 | $99,647 | 22.5% |
| Dalton, MO | 29 | $81,266 | 0.1% |
| Glasgow, MO | 1,142 | $67,473 | 17.0% |
| Marshall, MO | 13,323 | $66,860 | 17.8% |
| Gilliam, MO | 193 | $48,968 | 39.8% |
| City | Population | Household Income | National Avg. |
| Adak, AK | 193 | $76,096 | 6.4% |
| Prescott, IA | 193 | $70,512 | 13.3% |
| Sun Valley Lake, IA | 193 | $109,724 | 34.9% |
| West Brooklyn, IL | 193 | $98,774 | 21.4% |
| Butlerville, IN | 193 | $0 | 100.0% |
| Gilliam, MO | 193 | $48,968 | 39.8% |