| Index | Delmar | Maryland | National |
| Income per capita | $43,741 | $55,489 | $44,883 |
| Median household income | $88,810 | $112,126 | $81,333 |
| Median income owner occupied | $91,797 | $142,381 | $106,172 |
| Median income renter occupied | $88,354 | $70,540 | $52,080 |
| Median earnings male | $83,584 | $69,331 | $54,343 |
| Median earnings female | $38,967 | $51,519 | $38,439 |
| Unemployment rate | 11.6% | 4.8% | 4.9% |
| Poverty level | 18.1% | 9.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.9% | 10.9% |
| Manufacturing sector | 1.3% | 1.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 1.5% | 1.5% |
| Public administration | 6.2% | 6.2% |
| Transportation, warehousing & utilities | 12.2% | 12.2% |
| Education, health & social services | 37.5% | 37.5% |
| Other | 30.4% | 30.4% |
| City | Population | Household Income | National Avg. |
| Allen, MD | 429 | $172,843 | 112.5% |
| Quantico, MD | 205 | $159,067 | 95.6% |
| Mount Vernon, MD | 1,052 | $131,934 | 62.2% |
| Mardela Springs, MD | 500 | $122,966 | 51.2% |
| Bethel, DE | 418 | $112,084 | 37.8% |
| Delmar, MD | 3,402 | $88,810 | 9.2% |
| City | Population | Household Income | National Avg. |
| Bella Vista, CA | 3,402 | $111,769 | 37.4% |
| Nicholls, GA | 3,402 | $25,379 | 68.8% |
| Waller, TX | 3,402 | $55,356 | 31.9% |
| Lake California, CA | 3,400 | $111,189 | 36.7% |
| Leisuretowne, NJ | 3,400 | $77,358 | 4.9% |
| Delmar, MD | 3,402 | $88,810 | 9.2% |