| Index | Barnesville | Maryland | National |
| Income per capita | $64,141 | $37,756 | $29,829 |
| Median household income | $116,875 | $76,067 | $55,322 |
| Median income owner occupied | $116,875 | $95,994 | $70,586 |
| Median income renter occupied | $0 | $47,333 | $35,192 |
| Median earnings male | $0 | $46,495 | $36,919 |
| Median earnings female | $26,016 | $35,612 | $26,250 |
| Unemployment rate | 0.0% | 4.5% | 4.7% |
| Poverty level | 1.2% | 9.9% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 17.9% | 17.9% |
| Manufacturing sector | 32.1% | 32.1% |
| Financial & insurance services | 3.6% | 3.6% |
| Wholesale & retail services | 10.7% | 10.7% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 35.7% | 35.7% |
| City | Population | Household Income | National Avg. |
| Great Falls, VA | 14,793 | $238,828 | 331.7% |
| Travilah, MD | 11,239 | $235,469 | 325.6% |
| Lowes Island, VA | 11,319 | $199,375 | 260.4% |
| Broadlands, VA | 14,146 | $194,728 | 252.0% |
| Potomac, MD | 46,256 | $189,729 | 243.0% |
| Barnesville, MD | 163 | $116,875 | 111.3% |
| City | Population | Household Income | National Avg. |
| Oil Trough, AR | 163 | $42,500 | 23.2% |
| Antares, AZ | 163 | $0 | 100.0% |
| Sedgwick, CO | 163 | $63,750 | 15.2% |
| Maunie, IL | 163 | $45,000 | 18.7% |
| Lincolnville, KS | 163 | $39,737 | 28.2% |
| Barnesville, MD | 163 | $116,875 | 111.3% |