| Index | St. Marks | Florida | National |
| Income per capita | $39,815 | $40,554 | $44,883 |
| Median household income | $90,789 | $72,078 | $81,333 |
| Median income owner occupied | $90,545 | $88,075 | $106,172 |
| Median income renter occupied | $0 | $51,794 | $52,080 |
| Median earnings male | $0 | $45,688 | $54,343 |
| Median earnings female | $49,834 | $37,493 | $38,439 |
| Unemployment rate | 1.3% | 5.2% | 4.9% |
| Poverty level | 17.1% | 16.1% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.5% | 10.5% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 39.5% | 39.5% |
| Public administration | 2.6% | 2.6% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 47.4% | 47.4% |
| City | Population | Household Income | National Avg. |
| Crawfordville, FL | 4,213 | $103,971 | 27.8% |
| Woodville, FL | 4,201 | $77,681 | 4.5% |
| Panacea, FL | 765 | $40,470 | 50.2% |
| Wacissa, FL | 366 | $0 | 100.0% |
| St. Marks, FL | 349 | $90,789 | 11.6% |
| City | Population | Household Income | National Avg. |
| Keysville, GA | 349 | $71,542 | 12.0% |
| Montrose, GA | 349 | $81,701 | 0.5% |
| Duncombe, IA | 349 | $69,712 | 14.3% |
| Kempton, IN | 349 | $68,983 | 15.2% |
| Mooreland, IN | 349 | $64,205 | 21.1% |
| St. Marks, FL | 349 | $90,789 | 11.6% |