| Index | Newcastle | Maine | National |
| Cost of living | 126 | 101 | 100 |
| Groceries | 101 | 101 | 100 |
| Health care | 115 | 115 | 100 |
| Housing | 176 | 91 | 100 |
| Transportation | 103 | 103 | 100 |
| Utilities | 118 | 118 | 100 |
| Lifestyle & Entertainment | n/a | n/a | n/a |
| Household Items | n/a | n/a | n/a |
| Education & Childcare | n/a | n/a | n/a |

| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $207,184 | $17,265 | $4,834 | $6,216 |
| Renters | $38,260 | $3,188 | $893 | $1,148 |
| State | General Sales Tax | With Max Surtax |
| Maine | 5.5% | 5.5% |
| State | Income Tax (Low) | Income Tax (High) |
| Maine | 5.8% | 7.15% |
| City | Population | Cost of Living Index | National Avg. |
| Waldoboro, ME | 1,419 | 93 | 6.6% |
| Randolph, ME | 1,753 | 95 | 5.2% |
| Gardiner, ME | 5,863 | 98 | 1.7% |
| Farmingdale, ME | 2,516 | 99 | 1.4% |
| Richmond, ME | 1,788 | 100 | 0.1% |
| Newcastle, ME | 668 | 126 | 26.2% |
| City | Population | Cost of Living Index | National Avg. |
| Port Sanilac, MI | 668 | 87 | 12.7% |
| Edgerton, MO | 668 | 82 | 17.9% |
| Hatley, MS | 668 | 84 | 16.3% |
| Dundee, OH | 668 | 76 | 24.2% |
| Ettrick, WI | 668 | 89 | 11.3% |
| Newcastle, ME | 668 | 126 | 26.2% |