| Index | Oak Grove | Kentucky | National |
| Income per capita | $15,702 | $23,741 | $28,555 |
| Median household income | $35,886 | $43,342 | $53,482 |
| Median income owner occupied | $33,818 | $55,166 | $68,142 |
| Median income renter occupied | $37,946 | $24,735 | $33,219 |
| Median earnings male | $30,617 | $32,091 | $36,116 |
| Median earnings female | $20,293 | $22,404 | $25,692 |
| Unemployment rate | 5.8% | 5.5% | 5.8% |
| Poverty level | 17.4% | 18.9% | 15.6% |
| Labour Type | Male | Female |
| Construction industry | 5.2% | 0.0% |
| Manufacturing sector | 27.5% | 1.8% |
| Financial & insurance services | 0.0% | 1.3% |
| Wholesale & retail services | 7.3% | 24.0% |
| Public administration | 26.5% | 14.2% |
| Transportation, warehousing & utilities | 4.0% | 2.0% |
| Education, health & social services | 10.1% | 27.9% |
| Other | 14.3% | 18.8% |
| City, State | Population | Household Income | National Avg. |
| Fairview, KY | 320 | $67,794 | 27% |
| Clarksville, TN | 140,563 | $47,489 | 11% |
| Trenton, KY | 393 | $43,500 | 19% |
| Fort Campbell North, KY | 14,015 | $36,642 | 31% |
| LaFayette, KY | 150 | $35,000 | 35% |
| Oak Grove, KY | 7,522 | $35,886 | 33% |
| City, State | Population | Household Income | National Avg. |
| Princeton, TX | 7,520 | $43,681 | 18% |
| Othello, WA | 7,524 | $42,414 | 21% |
| Silvis, IL | 7,525 | $44,647 | 17% |
| North Amherst, MA | 7,517 | $35,641 | 33% |
| Catalina, AZ | 7,527 | $49,332 | 8% |
| Oak Grove, KY | 7,522 | $35,886 | 33% |