| Index | Newcastle | Maine | National |
| Income per capita | $74,509 | $41,801 | $44,883 |
| Median household income | $148,988 | $75,250 | $81,333 |
| Median income owner occupied | $207,184 | $92,426 | $106,172 |
| Median income renter occupied | $38,260 | $41,013 | $52,080 |
| Median earnings male | $33,026 | $49,176 | $54,343 |
| Median earnings female | $0 | $36,497 | $38,439 |
| Unemployment rate | 2.7% | 4.0% | 4.9% |
| Poverty level | 5.8% | 13.5% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 14.9% | 14.9% |
| Manufacturing sector | 12.1% | 12.1% |
| Financial & insurance services | 34.0% | 34.0% |
| Wholesale & retail services | 10.2% | 10.2% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 14.0% | 14.0% |
| Other | 14.9% | 14.9% |
| City | Population | Household Income | National Avg. |
| Richmond, ME | 1,788 | $82,645 | 1.6% |
| Wiscasset, ME | 1,320 | $80,736 | 0.7% |
| Boothbay Harbor, ME | 1,116 | $78,154 | 3.9% |
| Farmingdale, ME | 2,516 | $77,815 | 4.3% |
| Gardiner, ME | 5,863 | $77,025 | 5.3% |
| Newcastle, ME | 668 | $148,988 | 83.2% |
| City | Population | Household Income | National Avg. |
| Port Sanilac, MI | 668 | $64,078 | 21.2% |
| Edgerton, MO | 668 | $69,760 | 14.2% |
| Hatley, MS | 668 | $70,510 | 13.3% |
| Dundee, OH | 668 | $160,260 | 97.0% |
| Ettrick, WI | 668 | $74,243 | 8.7% |
| Newcastle, ME | 668 | $148,988 | 83.2% |