| Index | St. Mary's | Nova Scotia | National |
| Cost of living | 84 | 92 | 100 |
| Goods & Services | 113 | 113 | 100 |
| Groceries | 103 | 103 | 100 |
| Health care | 93 | 93 | 100 |
| Housing | 20 | 49 | 100 |
| Transportation | 96 | 96 | 100 |
| Utilities | 142 | 142 | 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 |
| Nova Scotia | 10% | 15% |
| State | Income Tax (Low) | Income Tax (High) |
| Nova Scotia | 8.79% | 21% |
| Item | St. Mary's | National avg. | Difference |
| Personal Care | $86.00 | $94.33 | 8.8% |
| Recreation | $104.00 | $102.33 | 1.6% |
| Item | St. Mary's | National avg. | Difference |
| Meat, Poultry and Fish | $96.00 | $102.27 | 6.1% |
| Dairy Products and Eggs | $101.00 | $104.67 | 3.5% |
| Bakery and Cereal Products | $107.00 | $111.67 | 4.2% |
| Fruit and Vegetables | $105.00 | $113.40 | 7.4% |
| Alcoholic Beverages | $101.00 | $105.80 | 4.5% |
| Item | St. Mary's | National avg. | Difference |
| Doctor | $101.00 | $101.07 | 0.1% |
| Item | St. Mary's | National avg. | Difference |
| Home Price ($) | $n/a | $659,395.00 | 100.0% |
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% |
| Item | St. Mary's | National avg. | Difference |
| Gasoline | $95.00 | $102.07 | 6.9% |
| Item | St. Mary's | National avg. | Difference |
| All Electricity | $99.00 | $98.60 | 0.4% |
| City | Population | Cost of Living Index | National Avg. |
| St. Mary's, NS | 2,105 | 84 | 15.9% |
| City | Population | Cost of Living Index | National Avg. |
| Pawling, NY | 2,105 | n/a | |
| Balgonie, SK | 2,105 | 89 | 10.8% |
| Cascade, IA | 2,104 | n/a | |
| Saugerties South, NY | 2,104 | n/a | |
| Richmond, IL | 2,106 | n/a | |
| St. Mary's, NS | 2,105 | 84 | 15.9% |