| Index | Petersham | Massachusetts | National |
| Income per capita | $62,280 | $57,616 | $44,883 |
| Median household income | $83,099 | $106,188 | $81,333 |
| Median income owner occupied | $84,076 | $143,346 | $106,172 |
| Median income renter occupied | $98,527 | $57,502 | $52,080 |
| Median earnings male | $55,647 | $67,299 | $54,343 |
| Median earnings female | $32,203 | $46,306 | $38,439 |
| Unemployment rate | 0.0% | 4.8% | 4.9% |
| Poverty level | 4.8% | 11.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 11.5% | 11.5% |
| Manufacturing sector | 20.5% | 20.5% |
| Financial & insurance services | 2.6% | 2.6% |
| Wholesale & retail services | 9.0% | 9.0% |
| Public administration | 3.8% | 3.8% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 17.9% | 17.9% |
| Other | 34.6% | 34.6% |
| City | Population | Household Income | National Avg. |
| South Ashburnham, MA | 904 | $122,992 | 51.2% |
| Rutland, MA | 1,789 | $108,980 | 34.0% |
| Winchendon, MA | 4,851 | $92,060 | 13.2% |
| Orange, MA | 3,966 | $88,307 | 8.6% |
| Barre, MA | 969 | $82,132 | 1.0% |
| Petersham, MA | 264 | $83,099 | 2.2% |
| City | Population | Household Income | National Avg. |
| Decker, IN | 264 | $60,616 | 25.5% |
| Losantville, IN | 264 | $56,614 | 30.4% |
| Cuba, KS | 264 | $54,617 | 32.8% |
| Oakland, KY | 264 | $48,418 | 40.5% |
| Chunky, MS | 264 | $46,909 | 42.3% |
| Petersham, MA | 264 | $83,099 | 2.2% |