| Index | Northfield | Massachusetts | National |
| Income per capita | $63,841 | $57,616 | $44,883 |
| Median household income | $73,272 | $106,188 | $81,333 |
| Median income owner occupied | $130,957 | $143,346 | $106,172 |
| Median income renter occupied | $21,513 | $57,502 | $52,080 |
| Median earnings male | $75,619 | $67,299 | $54,343 |
| Median earnings female | $41,737 | $46,306 | $38,439 |
| Unemployment rate | 1.3% | 4.8% | 4.9% |
| Poverty level | 6.3% | 11.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 6.4% | 6.4% |
| Manufacturing sector | 7.2% | 7.2% |
| Financial & insurance services | 5.1% | 5.1% |
| Wholesale & retail services | 14.0% | 14.0% |
| Public administration | 18.2% | 18.2% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 28.8% | 28.8% |
| Other | 20.3% | 20.3% |
| City | Population | Household Income | National Avg. |
| West Swanzey, NH | 1,204 | $110,647 | 36.0% |
| Orange, MA | 3,966 | $88,307 | 8.6% |
| Hinsdale, NH | 1,514 | $87,171 | 7.2% |
| Marlborough, NH | 1,115 | $83,196 | 2.3% |
| Troy, NH | 879 | $81,662 | 0.4% |
| Northfield, MA | 999 | $73,272 | 9.9% |
| City | Population | Household Income | National Avg. |
| Minkler, CA | 999 | $101,514 | 24.8% |
| Bow Mar, CO | 999 | $262,718 | 223.0% |
| Arnolds Park, IA | 999 | $97,490 | 19.9% |
| North Branch, MI | 999 | $60,591 | 25.5% |
| Lake Tapawingo, MO | 999 | $124,630 | 53.2% |
| Northfield, MA | 999 | $73,272 | 9.9% |