| Index | Mississippi Mills | Ontario | National | 
| Average School Score | 74.1 | 67.5 | 66.1 | 
| Total public schools | 7 | 7,342 | 17,366 | 
| Index | Mississippi Mills | Ontario | National | 
| No certificate, diploma or degree | 13.0% | 15.9% | 16.7% | 
| High School certificate or equivalent | 87.2% | 84.1% | 83.3% | 
| Apprenticeship or trades certificate | 59.8% | 56.9% | 56.8% | 
| College or other non-university diploma | 51.5% | 51.1% | 47.4% | 
| University certificate or below bachelor | 23.1% | 29.8% | 27.5% | 
| Bachelor's degree | 21.1% | 27.9% | 25.1% | 
| Above bachelor's degree | 6.2% | 9.1% | 8.1% | 
| City | Population | Avg. School Score | National Avg. | 
| Arnprior, ON | 9,608 | 73.4 | 10.9% | 
| Carleton Place, ON | 11,965 | 72.0 | 8.9% | 
| Lanark Highlands, ON | 5,714 | 49.7 | 24.9% | 
| Mississippi Mills, ON | 14,064 | 74.1 | 12.0% | 
| City | Population | Avg. School Score | National Avg. | 
| Guelph/Eramosa, ON | 13,999 | 71.0 | 7.3% | 
| Powell River, BC | 13,967 | 61.7 | 6.8% | 
| North Perth, ON | 14,233 | 71.5 | 8.1% | 
| The Nation / La Nation, ON | 13,890 | 73.2 | 10.6% | 
| Lacombe, AB | 13,889 | 62.2 | 6.0% | 
| Mississippi Mills, ON | 14,064 | 74.1 | 12.0% |