| Index | Somersworth | New Hampshire | National |
| Income per capita | $32,448 | $35,264 | $29,829 |
| Median household income | $67,209 | $68,485 | $55,322 |
| Median income owner occupied | $75,059 | $83,641 | $70,586 |
| Median income renter occupied | $51,023 | $40,305 | $35,192 |
| Median earnings male | $44,784 | $42,158 | $36,919 |
| Median earnings female | $31,625 | $29,994 | $26,250 |
| Unemployment rate | 2.9% | 3.4% | 4.7% |
| Poverty level | 8.1% | 8.5% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 2.8% | 2.8% |
| Manufacturing sector | 29.2% | 29.2% |
| Financial & insurance services | 10.3% | 10.3% |
| Wholesale & retail services | 13.4% | 13.4% |
| Public administration | 6.9% | 6.9% |
| Transportation, warehousing & utilities | 9.5% | 9.5% |
| Education, health & social services | 4.2% | 4.2% |
| Other | 21.1% | 21.1% |
| City | Population | Household Income | National Avg. |
| Kittery Point, ME | 1,034 | $106,635 | 92.8% |
| Cape Neddick, ME | 2,563 | $87,578 | 58.3% |
| Portsmouth, NH | 21,418 | $78,712 | 42.3% |
| York Harbor, ME | 3,484 | $75,647 | 36.7% |
| Dover, NH | 31,922 | $74,833 | 35.3% |
| Somersworth, NH | 12,027 | $67,209 | 21.5% |
| City | Population | Household Income | National Avg. |
| Home Gardens, CA | 12,027 | $67,716 | 22.4% |
| Hasbrouck Heights, NJ | 12,026 | $95,784 | 73.1% |
| Green River, WY | 12,025 | $80,871 | 46.2% |
| Rawdon, QC | 12,021 | n/a | |
| Adjala-Tosorontio, ON | 12,021 | n/a | |
| Somersworth, NH | 12,027 | $67,209 | 21.5% |
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