| Index | St. Ignatius | Montana | National |
| Average Test Scores | 29% | 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 | St. Ignatius | Montana | National |
| Completed 8th grade | 84.4% | 89.4% | 84.3% |
| Completed high school | 83.1% | 88.2% | 83.0% |
| Completed some college | 55.8% | 63.1% | 59.4% |
| Completed associate degree | 25.6% | 38.6% | 38.5% |
| Completed bachelors | 18.0% | 29.9% | 30.3% |
| Completed masters | 5.6% | 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 St. Ignatius. Using the proficiency score averages, the average test scores for St. Ignatius, MT schools is 29%. The average student to teacher ratio is n/a. In St. Ignatius, MT, an average of 84.4% of students have completed 8th grade and an average of 83.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Charlo, MT | 269 | 54% | 12.5% |
| Dixon, MT | 262 | 50% | 4.2% |
| Ronan, MT | 1,848 | 33% | 32.3% |
| Arlee, MT | 605 | 15% | 69.1% |
| St. Ignatius, MT | 809 | 29% | 39.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Eads, CO | 809 | 63% | 31.9% |
| Hobson City, AL | 809 | 46% | 4.2% |
| McKenzie, AL | 809 | 45% | 7.3% |
| Holly, CO | 809 | 27% | 43.1% |
| North, SC | 809 | 23% | 51.6% |
| St. Ignatius, MT | 809 | 29% | 39.9% |