| Index | Centennial | Oshawa | Ontario |
| Cost of living | 93 | 93 | 111 |
| Goods & Services | 108 | 108 | 107 |
| Groceries | 100 | 100 | 101 |
| Health care | 103 | 103 | 103 |
| Housing | 55 | 56 | 120 |
| Transportation | 107 | 107 | 104 |
| Utilities | 130 | 130 | 119 |
| 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 |
| Ontario | 8% | 13% |
| State | Income Tax (Low) | Income Tax (High) |
| Ontario | 5.05% | 13.16% |
| Item | Oshawa | National avg. | Difference |
| Personal Care | $102.00 | $94.33 | 8.1% |
| Recreation | $99.00 | $102.33 | 3.3% |
| Item | Oshawa | National avg. | Difference |
| Meat, Poultry and Fish | $99.00 | $102.27 | 3.2% |
| Dairy Products and Eggs | $101.00 | $104.67 | 3.5% |
| Bakery and Cereal Products | $97.00 | $111.67 | 13.1% |
| Fruit and Vegetables | $98.00 | $113.40 | 13.6% |
| Alcoholic Beverages | $102.00 | $105.80 | 3.6% |
| Item | Oshawa | National avg. | Difference |
| Doctor | $104.00 | $101.07 | 2.9% |
| Item | Oshawa | National avg. | Difference |
| Home Price ($) | $815,825.00 | $659,395.00 | 23.7% |
| Apartment Rent ($) | $2,130.00 | $2,146.00 | 0.7% |
| Item | Oshawa | National avg. | Difference |
| Gasoline | $99.00 | $102.07 | 3.0% |
| Item | Oshawa | National avg. | Difference |
| All Electricity | $106.00 | $98.60 | 7.5% |
| City | Population | Cost of Living Index | National Avg. |
| Clarington, ON | 104,855 | 96 | 3.7% |
| Whitby, ON | 142,607 | 99 | 0.6% |
| Ajax, ON | 138,303 | 100 | 0.4% |
| Scugog, ON | 22,436 | 100 | 0.4% |
| Pickering, ON | 96,267 | 100 | 0.5% |
| Oshawa, ON | 176,009 | 93 | 6.6% |
| City | Population | Cost of Living Index | National Avg. |
| Oceanside, CA | 175,694 | n/a | |
| Rancho Cucamonga, CA | 178,060 | n/a | |
| Ontario, CA | 178,194 | n/a | |
| Santa Rosa, CA | 178,391 | n/a | |
| Elk Grove, CA | 173,370 | n/a | |
| Oshawa, ON | 176,009 | 93 | 6.6% |