| Index | Newmarket | New Hampshire | National |
| Income per capita | $59,380 | $52,737 | $44,883 |
| Median household income | $102,375 | $104,022 | $81,333 |
| Median income owner occupied | $157,103 | $125,944 | $106,172 |
| Median income renter occupied | $83,270 | $61,008 | $52,080 |
| Median earnings male | $66,253 | $62,075 | $54,343 |
| Median earnings female | $51,729 | $44,274 | $38,439 |
| Unemployment rate | 0.3% | 3.6% | 4.9% |
| Poverty level | 7.0% | 8.5% | 15.1% |

| 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 | 260 | $240,632 | 195.9% |
| Seabrook Beach, NH | 1,000 | $162,562 | 99.9% |
| Kittery Point, ME | 1,059 | $156,007 | 91.8% |
| Hampton, NH | 10,213 | $122,489 | 50.6% |
| Portsmouth, NH | 22,060 | $115,727 | 42.3% |
| Newmarket, NH | 5,955 | $102,375 | 25.9% |
| City | Population | Household Income | National Avg. |
| Stettler, AB | 5,955 | n/a | |
| Chickasaw, AL | 5,954 | $48,149 | 40.8% |
| Smiths Station, AL | 5,954 | $74,273 | 8.7% |
| Elsmere, DE | 5,954 | $93,118 | 14.5% |
| Yarmouth, ME | 5,954 | $101,650 | 25.0% |
| Newmarket, NH | 5,955 | $102,375 | 25.9% |