| Index | Saint Mary | New Brunswick | National |
| Cost of living | 82 | 86 | 100 |
| Goods & Services | 104 | 106 | 100 |
| Groceries | 105 | 104 | 100 |
| Health care | 96 | 92 | 100 |
| Housing | 21 | 36 | 100 |
| Transportation | 92 | 96 | 100 |
| Utilities | 140 | 149 | 100 |
| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index |
| State | General Sales Tax | With Max Surtax |
| New Brunswick | 10% | 15% |
| State | Income Tax (Low) | Income Tax (High) |
| New Brunswick | 9.68% | 20.3% |
| Item | Saint Mary | National avg. | Difference |
| Personal Care | $88.00 | $95.07 | 7.4% |
| Recreation | $103.00 | $101.73 | 1.2% |
| Item | Saint Mary | National avg. | Difference |
| Meat, Poultry and Fish | $96.00 | $102.47 | 6.3% |
| Dairy Products and Eggs | $105.00 | $106.00 | 0.9% |
| Bakery and Cereal Products | $110.00 | $111.87 | 1.7% |
| Fruit and Vegetables | $105.00 | $112.87 | 7.0% |
| Alcoholic Beverages | $108.00 | $106.80 | 1.1% |
| Item | Saint Mary | National avg. | Difference |
| Doctor | $99.00 | $101.07 | 2.0% |
| Item | Saint Mary | National avg. | Difference |
| Home Price ($) | $n/a | $659,395.00 | 100.0% |
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% |
| Item | Saint Mary | National avg. | Difference |
| Gasoline | $97.00 | $102.53 | 5.4% |
| Item | Saint Mary | National avg. | Difference |
| All Electricity | $96.00 | $98.80 | 2.8% |
| City | Population | Cost of Living Index | National Avg. |
| Buctouche 16, NB | 106 | 108 | 7.5% |
| Saint-Paul, NB | 863 | 81 | 19.1% |
| Weldford, NB | 1,423 | 80 | 19.6% |
| Richibucto 15, NB | 2,044 | 81 | 19.1% |
| Wellington, NB | 3,185 | 82 | 17.9% |
| Saint Mary, NB | 2,046 | 82 | 18.4% |
| City | Population | Cost of Living Index | National Avg. |
| Alta, IA | 2,046 | n/a | |
| Liberty, KY | 2,046 | n/a | |
| Saint-Nazaire, QC | 2,046 | 71 | 29.5% |
| Morris, AL | 2,045 | n/a | |
| Old Saybrook Center, CT | 2,047 | n/a | |
| Saint Mary, NB | 2,046 | 82 | 18.4% |