| Index | Millington | Maryland | National |
| Income per capita | $34,617 | $55,489 | $44,883 |
| Median household income | $87,971 | $112,126 | $81,333 |
| Median income owner occupied | $108,894 | $142,381 | $106,172 |
| Median income renter occupied | $59,991 | $70,540 | $52,080 |
| Median earnings male | $63,045 | $69,331 | $54,343 |
| Median earnings female | $40,491 | $51,519 | $38,439 |
| Unemployment rate | 6.2% | 4.8% | 4.9% |
| Poverty level | 20.3% | 9.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 12.1% | 12.1% |
| Manufacturing sector | 26.1% | 26.1% |
| Financial & insurance services | 3.6% | 3.6% |
| Wholesale & retail services | 9.7% | 9.7% |
| Public administration | 11.5% | 11.5% |
| Transportation, warehousing & utilities | 1.2% | 1.2% |
| Education, health & social services | 4.2% | 4.2% |
| Other | 31.5% | 31.5% |
| City | Population | Household Income | National Avg. |
| Townsend, DE | 2,642 | $208,642 | 156.5% |
| Hartly, DE | 170 | $185,756 | 128.4% |
| Centreville, MD | 4,966 | $149,388 | 83.7% |
| Middletown, DE | 23,057 | $137,722 | 69.3% |
| Clayton, DE | 3,485 | $131,090 | 61.2% |
| Millington, MD | 634 | $87,971 | 8.2% |
| City | Population | Household Income | National Avg. |
| Lockesburg, AR | 634 | $59,339 | 27.0% |
| Plainview, CA | 634 | $34,937 | 57.0% |
| Maybee, MI | 634 | $72,773 | 10.5% |
| Stuart, NE | 634 | $87,870 | 8.0% |
| Riverside village, NY | 634 | $60,891 | 25.1% |
| Millington, MD | 634 | $87,971 | 8.2% |