| Index | Marydel | Maryland | National |
| Income per capita | $24,765 | $55,489 | $44,883 |
| Median household income | $60,549 | $112,126 | $81,333 |
| Median income owner occupied | $0 | $142,381 | $106,172 |
| Median income renter occupied | $72,239 | $70,540 | $52,080 |
| Median earnings male | $33,522 | $69,331 | $54,343 |
| Median earnings female | $0 | $51,519 | $38,439 |
| Unemployment rate | 1.7% | 4.8% | 4.9% |
| Poverty level | 36.1% | 9.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 38.1% | 38.1% |
| Manufacturing sector | 8.3% | 8.3% |
| Financial & insurance services | 7.1% | 7.1% |
| Wholesale & retail services | 6.0% | 6.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 6.0% | 6.0% |
| Education, health & social services | 1.2% | 1.2% |
| Other | 33.3% | 33.3% |
| City | Population | Household Income | National Avg. |
| Queen Anne, MD | 1,216 | $206,864 | 154.3% |
| Hartly, DE | 170 | $185,756 | 128.4% |
| Highland Acres, DE | 4,053 | $139,080 | 71.0% |
| Clayton, DE | 3,485 | $131,090 | 61.2% |
| Viola, DE | 177 | $127,881 | 57.2% |
| Marydel, MD | 250 | $60,549 | 25.6% |
| City | Population | Household Income | National Avg. |
| Knobel, AR | 250 | $121,366 | 49.2% |
| Lazy Y U, AZ | 250 | $107,102 | 31.7% |
| Homewood Canyon, CA | 250 | $0 | 100.0% |
| Orchard Hill, GA | 250 | $45,381 | 44.2% |
| East Gillespie, IL | 250 | $95,696 | 17.7% |
| Marydel, MD | 250 | $60,549 | 25.6% |