| Index | Newmarket | New Hampshire | National |
| Income per capita | $39,736 | $35,264 | $29,829 |
| Median household income | $69,259 | $68,485 | $55,322 |
| Median income owner occupied | $103,821 | $83,641 | $70,586 |
| Median income renter occupied | $54,952 | $40,305 | $35,192 |
| Median earnings male | $45,524 | $42,158 | $36,919 |
| Median earnings female | $35,693 | $29,994 | $26,250 |
| Unemployment rate | 0.3% | 3.4% | 4.7% |
| Poverty level | 7.0% | 8.5% | 15.1% |
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| Labour Type | Male | Female |
| Construction industry | 7.0% | 7.0% |
| Manufacturing sector | 22.2% | 22.2% |
| Financial & insurance services | 1.2% | 1.2% |
| Wholesale & retail services | 13.7% | 13.7% |
| Public administration | 2.1% | 2.1% |
| Transportation, warehousing & utilities | 2.5% | 2.5% |
| Education, health & social services | 18.7% | 18.7% |
| Other | 31.8% | 31.8% |
| City | Population | Household Income | National Avg. |
| Newfields, NH | 254 | $158,750 | 187.0% |
| Seabrook Beach, NH | 976 | $110,577 | 99.9% |
| Kittery Point, ME | 1,034 | $106,635 | 92.8% |
| Hampton, NH | 10,002 | $82,092 | 48.4% |
| Portsmouth, NH | 21,418 | $78,712 | 42.3% |
| Newmarket, NH | 5,737 | $69,259 | 25.2% |
| City | Population | Household Income | National Avg. |
| West Side Highway, WA | 5,735 | $59,527 | 7.6% |
| Schriever, LA | 5,734 | $40,515 | 26.8% |
| Newtown Grant, PA | 5,740 | $159,025 | 187.5% |
| Princeton, WV | 5,740 | $41,925 | 24.2% |
| Nolanville, TX | 5,732 | $55,536 | 0.4% |
| Newmarket, NH | 5,737 | $69,259 | 25.2% |
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