| Index | McKinney | Texas | National |
| Average Test Scores | 59% | 47% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 25 | 7,418 | 79,221 |
| Total private schools | 4 | 1,267 | 24,874 |
| Total post-secondary schools | 2 | 463 | 7,963 |
| Index | McKinney | Texas | National |
| Completed 8th grade | 90.1% | 79.3% | 84.3% |
| Completed high school | 89.6% | 77.8% | 83.0% |
| Completed some college | 75.9% | 57.3% | 59.4% |
| Completed associate degree | 54.4% | 34.9% | 38.5% |
| Completed bachelors | 44.6% | 28.1% | 30.3% |
| Completed masters | 14.4% | 9.6% | 11.5% |
| Completed professional degree | 3.0% | 2.6% | 3.3% |
| Completed doctorate | 1.0% | 1.1% | 1.3% |
There are a total of 25 public schools, 4 private schools and 2 post-secondary schools in McKinney. Using the proficiency score averages, the average test scores for McKinney, TX schools is 59%. The average student to teacher ratio is 16:1. In McKinney, TX, an average of 90.1% of students have completed 8th grade and an average of 89.6% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Lucas, TX | 6,585 | 86% | 78% |
| Fairview, TX | 8,235 | 83% | 71% |
| Murphy, TX | 20,015 | 73% | 51% |
| Frisco, TX | 145,646 | 71% | 49% |
| Allen, TX | 94,710 | 71% | 48% |
| McKinney, TX | 156,821 | 59% | 23% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Cary, NC | 155,822 | 62% | 29% |
| Springfield, MA | 153,991 | 31% | 35% |
| Macon-Bibb County, GA | 153,925 | 26% | 47% |
| Pasadena, TX | 153,286 | 41% | 16% |
| Eugene, OR | 161,649 | 48% | 1% |
| McKinney, TX | 156,821 | 59% | 23% |
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