| Index | Seaford | Delaware | National |
| Income per capita | $36,317 | $46,894 | $44,883 |
| Median household income | $77,488 | $90,340 | $81,333 |
| Median income owner occupied | $103,934 | $109,575 | $106,172 |
| Median income renter occupied | $48,553 | $56,447 | $52,080 |
| Median earnings male | $56,763 | $57,948 | $54,343 |
| Median earnings female | $34,978 | $43,895 | $38,439 |
| Unemployment rate | 6.0% | 4.7% | 4.9% |
| Poverty level | 17.1% | 12.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 13.9% | 13.9% |
| Manufacturing sector | 24.3% | 24.3% |
| Financial & insurance services | 1.4% | 1.4% |
| Wholesale & retail services | 20.7% | 20.7% |
| Public administration | 1.7% | 1.7% |
| Transportation, warehousing & utilities | 9.2% | 9.2% |
| Education, health & social services | 5.8% | 5.8% |
| Other | 23.0% | 23.0% |
| City | Population | Household Income | National Avg. |
| Williston, MD | 181 | $239,487 | 194.5% |
| Mardela Springs, MD | 500 | $122,966 | 51.2% |
| Bethel, DE | 418 | $112,084 | 37.8% |
| Vienna, MD | 438 | $111,583 | 37.2% |
| Sharptown, MD | 710 | $105,338 | 29.5% |
| Seaford, DE | 8,163 | $77,488 | 4.7% |
| City | Population | Household Income | National Avg. |
| Makawao, HI | 8,162 | $136,712 | 68.1% |
| Abingdon, VA | 8,159 | $69,056 | 15.1% |
| Landen, OH | 8,172 | $137,558 | 69.1% |
| Travelers Rest, SC | 8,172 | $53,799 | 33.9% |
| Ione, CA | 8,152 | $99,162 | 21.9% |
| Seaford, DE | 8,163 | $77,488 | 4.7% |