| Index | Westby | Montana | National |
| Average Test Scores | 50% | 45% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 408 | 79,221 |
| Total private schools | n/a | 77 | 24,874 |
| Total post-secondary schools | n/a | 32 | 7,963 |
| Index | Westby | Montana | National |
| Completed 8th grade | 97.5% | 89.4% | 84.3% |
| Completed high school | 89.8% | 88.2% | 83.0% |
| Completed some college | 55.9% | 63.1% | 59.4% |
| Completed associate degree | 35.6% | 38.6% | 38.5% |
| Completed bachelors | 28.8% | 29.9% | 30.3% |
| Completed masters | 20.3% | 9.8% | 11.5% |
| Completed professional degree | 0.0% | 3.0% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Westby. Using the proficiency score averages, the average test scores for Westby, MT schools is 50%. The average student to teacher ratio is n/a. In Westby, MT, an average of 97.5% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westby, MT | 163 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Aquilla, TX | 163 | 60% | 24.0% |
| Dell City, TX | 163 | 20% | 58.3% |
| Yoder, KS | 163 | 30% | 37.5% |
| Dayville, OR | 162 | 50% | 4.2% |
| Shanksville, PA | 162 | 56% | 15.6% |
| Westby, MT | 163 | 50% | 4.2% |
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