| Index | Littlejohn Island | Maine | National |
| Income per capita | $131,684 | $41,801 | $44,883 |
| Median household income | $123,227 | $75,250 | $81,333 |
| Median income owner occupied | $124,402 | $92,426 | $106,172 |
| Median income renter occupied | $0 | $41,013 | $52,080 |
| Median earnings male | $0 | $49,176 | $54,343 |
| Median earnings female | $0 | $36,497 | $38,439 |
| Unemployment rate | 0.0% | 4.0% | 4.9% |
| Poverty level | 0.0% | 13.5% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 38.5% | 38.5% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 61.5% | 61.5% |
| Other | 0.0% | 0.0% |
| City | Population | Household Income | National Avg. |
| Cousins Island, ME | 533 | $246,583 | 203.2% |
| Falmouth Foreside, ME | 1,588 | $182,943 | 124.9% |
| Cumberland Center, ME | 3,044 | $159,071 | 95.6% |
| Falmouth, ME | 1,925 | $146,340 | 79.9% |
| South Windham, ME | 1,061 | $111,237 | 36.8% |
| Littlejohn Island, ME | 64 | $123,227 | 51.5% |
| City | Population | Household Income | National Avg. |
| Port Heiden, AK | 64 | $67,689 | 16.8% |
| Goldfield, CO | 64 | $0 | 100.0% |
| Padroni, CO | 64 | $74,533 | 8.4% |
| Istachatta, FL | 64 | $31,072 | 61.8% |
| Seville, GA | 64 | $31,592 | 61.2% |
| Littlejohn Island, ME | 64 | $123,227 | 51.5% |