| Index | South Dennis | Massachusetts | National |
| Income per capita | $51,222 | $57,616 | $44,883 |
| Median household income | $92,160 | $106,188 | $81,333 |
| Median income owner occupied | $103,987 | $143,346 | $106,172 |
| Median income renter occupied | $82,619 | $57,502 | $52,080 |
| Median earnings male | $56,309 | $67,299 | $54,343 |
| Median earnings female | $46,171 | $46,306 | $38,439 |
| Unemployment rate | 1.1% | 4.8% | 4.9% |
| Poverty level | 7.8% | 11.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 15.1% | 15.1% |
| Manufacturing sector | 3.3% | 3.3% |
| Financial & insurance services | 5.4% | 5.4% |
| Wholesale & retail services | 14.7% | 14.7% |
| Public administration | 4.1% | 4.1% |
| Transportation, warehousing & utilities | 10.9% | 10.9% |
| Education, health & social services | 15.0% | 15.0% |
| Other | 30.4% | 30.4% |
| City | Population | Household Income | National Avg. |
| East Sandwich, MA | 3,760 | $149,613 | 84.0% |
| Dennis, MA | 2,003 | $137,373 | 68.9% |
| East Harwich, MA | 4,903 | $132,788 | 63.3% |
| West Chatham, MA | 1,259 | $127,900 | 57.3% |
| Yarmouth Port, MA | 5,330 | $121,668 | 49.6% |
| South Dennis, MA | 2,982 | $92,160 | 13.3% |
| City | Population | Household Income | National Avg. |
| Falmouth, KY | 2,982 | $46,116 | 43.3% |
| Cordaville, MA | 2,982 | $252,385 | 210.3% |
| Kingsclear, NB | 2,982 | n/a | |
| Yadkinville, NC | 2,981 | $58,842 | 27.7% |
| Colonial Heights, TN | 2,981 | $96,492 | 18.6% |
| South Dennis, MA | 2,982 | $92,160 | 13.3% |