| Index | Granby | Missouri | National | 
| Average Test Scores | 48% | 44% | 48% | 
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 | 
| Total public schools | 2 | 1,899 | 79,221 | 
| Total private schools | n/a | 531 | 24,874 | 
| Total post-secondary schools | n/a | 213 | 7,963 | 

 
				
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				| Index | Granby | Missouri | National | 
| Completed 8th grade | 81.7% | 86.0% | 84.3% | 
| Completed high school | 80.1% | 84.2% | 83.0% | 
| Completed some college | 51.7% | 57.7% | 59.4% | 
| Completed associate degree | 18.1% | 35.2% | 38.5% | 
| Completed bachelors | 4.9% | 27.6% | 30.3% | 
| Completed masters | 1.7% | 10.4% | 11.5% | 
| Completed professional degree | 0.2% | 2.8% | 3.3% | 
| Completed doctorate | 0.2% | 1.2% | 1.3% | 
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Granby. Using the proficiency score averages, the average test scores for Granby, MO schools is 48%. The average student to teacher ratio is 15:1. In Granby, MO, an average of 81.7% of students have completed 8th grade and an average of 80.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. | 
| Neosho, MO | 12,036 | 45% | 6.0% | 
| Pierce City, MO | 1,462 | 45% | 6.9% | 
| Diamond, MO | 926 | 41% | 14.2% | 
| Sarcoxie, MO | 1,596 | 40% | 16.7% | 
| Joplin, MO | 50,580 | 38% | 21.4% | 
| Granby, MO | 2,224 | 48% | 0.5% | 
| City | Population | Avg. Test Scores | National Avg. | 
| Spencer, IN | 2,224 | 45% | 7.3% | 
| Wesson, MS | 2,224 | 49% | 2.1% | 
| Sumner, IA | 2,224 | 71% | 47.9% | 
| Park Falls, WI | 2,225 | 36% | 25.5% | 
| Four Oaks, NC | 2,225 | 35% | 27.8% | 
| Granby, MO | 2,224 | 48% | 0.5% |