| Index | Mississippi Mills | Ontario | National |
| Cost of living | 102 | 113 | 100 |
| Groceries | 105 | 110 | 100 |
| Health care | 101 | 104 | 100 |
| Housing | 99 | 123 | 100 |
| Transportation | 102 | 104 | 100 |
| Utilities | 110 | 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. |
| Carleton Place, ON | 11,965 | 102 | 2.5% |
| McNab/Braeside, ON | 7,260 | 103 | 2.5% |
| Beckwith, ON | 7,986 | 103 | 3.2% |
| Arnprior, ON | 9,608 | 104 | 3.6% |
| Lanark Highlands, ON | 5,714 | 104 | 4.2% |
| Mississippi Mills, ON | 14,064 | 102 | 2.4% |
| City | Population | Cost of Living Index | National Avg. |
| Kailua CDP (Hawaii County), HI | 14,062 | n/a | |
| Grimes, IA | 14,059 | n/a | |
| Monticello, MN | 14,058 | n/a | |
| Lockhart, TX | 14,070 | n/a | |
| Beauharnois, QC | 14,056 | 87 | 13.1% |
| Mississippi Mills, ON | 14,064 | 102 | 2.4% |