| Index | Christian Island 30A | Ontario | National |
| Cost of living | 110 | 113 | 100 |
| Groceries | 115 | 110 | 100 |
| Health care | 106 | 104 | 100 |
| Housing | 103 | 123 | 100 |
| Transportation | 105 | 104 | 100 |
| Utilities | 132 | 121 | 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 | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| State | General Sales Tax | With Max Surtax |
| Ontario | 8% | 13% |
| State | Income Tax (Low) | Income Tax (High) |
| Ontario | 5.05% | 13.16% |
| City | Population | Cost of Living Index | National Avg. |
| Midland, ON | 18,769 | 109 | 8.7% |
| Christian Island 30, ON | 463 | 109 | 9.1% |
| Tiny, ON | 13,182 | 111 | 10.7% |
| Penetanguishene, ON | 9,475 | 111 | 11.0% |
| Georgian Bay, ON | 3,016 | 111 | 11.1% |
| Christian Island 30A, ON | 51 | 110 | 10.2% |
| City | Population | Cost of Living Index | National Avg. |
| Port Clarence, AK | 51 | n/a | |
| Ali Chukson, AZ | 51 | n/a | |
| Cartago, CA | 51 | n/a | |
| Fish Camp, CA | 51 | n/a | |
| Idalia, CO | 51 | n/a | |
| Christian Island 30A, ON | 51 | 110 | 10.2% |