| Index | Groton | Connecticut | National |
| Income per capita | $33,927 | $39,906 | $29,829 |
| Median household income | $51,941 | $71,755 | $55,322 |
| Median income owner occupied | $87,500 | $94,523 | $70,586 |
| Median income renter occupied | $35,573 | $37,585 | $35,192 |
| Median earnings male | $38,620 | $46,559 | $36,919 |
| Median earnings female | $29,632 | $31,943 | $26,250 |
| Unemployment rate | 4.1% | 5.3% | 4.7% |
| Poverty level | 13.1% | 10.4% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 6.6% | 6.6% |
| Manufacturing sector | 25.3% | 25.3% |
| Financial & insurance services | 1.3% | 1.3% |
| Wholesale & retail services | 8.3% | 8.3% |
| Public administration | 8.0% | 8.0% |
| Transportation, warehousing & utilities | 1.9% | 1.9% |
| Education, health & social services | 15.2% | 15.2% |
| Other | 33.4% | 33.4% |
| City | Population | Household Income | National Avg. |
| Noank, CT | 1,454 | $144,063 | 160.4% |
| Mashantucket, CT | 225 | $132,250 | 139.1% |
| Watch Hill, RI | 196 | $117,639 | 112.6% |
| Fenwick, CT | 44 | $113,750 | 105.6% |
| Mystic, CT | 4,776 | $112,246 | 102.9% |
| Groton, CT | 8,999 | $51,941 | 6.1% |
| City | Population | Household Income | National Avg. |
| Fairview, TX | 8,998 | $89,583 | 61.9% |
| Lock Haven, PA | 8,997 | $36,708 | 33.6% |
| Sheffield Lake, OH | 9,001 | $57,623 | 4.2% |
| Potsdam, NY | 9,003 | $25,850 | 53.3% |
| Roxborough Park, CO | 9,004 | $140,994 | 154.9% |
| Groton, CT | 8,999 | $51,941 | 6.1% |
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