| Index | Herculaneum | Missouri | National |
| Income per capita | $41,022 | $39,715 | $44,883 |
| Median household income | $99,649 | $72,613 | $81,333 |
| Median income owner occupied | $121,931 | $90,986 | $106,172 |
| Median income renter occupied | $54,025 | $45,210 | $52,080 |
| Median earnings male | $72,761 | $52,324 | $54,343 |
| Median earnings female | $45,790 | $36,971 | $38,439 |
| Unemployment rate | 6.3% | 4.4% | 4.9% |
| Poverty level | 12.0% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.0% | 10.0% |
| Manufacturing sector | 11.9% | 11.9% |
| Financial & insurance services | 2.3% | 2.3% |
| Wholesale & retail services | 8.2% | 8.2% |
| Public administration | 0.7% | 0.7% |
| Transportation, warehousing & utilities | 15.2% | 15.2% |
| Education, health & social services | 12.7% | 12.7% |
| Other | 36.1% | 36.1% |
| City | Population | Household Income | National Avg. |
| Columbia, IL | 10,985 | $158,048 | 94.3% |
| Scotsdale, MO | 126 | $131,788 | 62.0% |
| Byrnes Mill, MO | 3,054 | $128,900 | 58.5% |
| Oakville, MO | 37,403 | $127,927 | 57.3% |
| Barnhart, MO | 6,838 | $126,516 | 55.6% |
| Herculaneum, MO | 4,222 | $99,649 | 22.5% |
| City | Population | Household Income | National Avg. |
| Marine City, MI | 4,222 | $77,318 | 4.9% |
| Moxee, WA | 4,222 | $122,211 | 50.3% |
| Livingston, TN | 4,221 | $45,294 | 44.3% |
| Whiteman AFB, MO | 4,223 | $81,786 | 0.6% |
| Shrewsbury, NJ | 4,223 | $210,727 | 159.1% |
| Herculaneum, MO | 4,222 | $99,649 | 22.5% |