| Index | Langford | South Dakota | National |
| Average Test Scores | 48% | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Langford | South Dakota | National |
| Completed 8th grade | 92.7% | 89.1% | 84.3% |
| Completed high school | 89.1% | 86.8% | 83.0% |
| Completed some college | 58.3% | 60.4% | 59.4% |
| Completed associate degree | 37.2% | 38.5% | 38.5% |
| Completed bachelors | 30.8% | 27.5% | 30.3% |
| Completed masters | 6.9% | 8.1% | 11.5% |
| Completed professional degree | 4.0% | 2.5% | 3.3% |
| Completed doctorate | 1.2% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Langford. Using the proficiency score averages, the average test scores for Langford, SD schools is 48%. The average student to teacher ratio is n/a. In Langford, SD, an average of 92.7% of students have completed 8th grade and an average of 89.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Groton, SD | 1,842 | 70% | 45.1% |
| Britton, SD | 1,339 | 54% | 12.1% |
| Claremont, SD | 51 | 25% | 47.9% |
| Langford, SD | 525 | 48% | 0.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Cape Vincent, NY | 525 | 55% | 14.6% |
| Harmony, NC | 525 | 48% | 1.0% |
| Dillard, OR | 525 | 50% | 4.2% |
| Laurelville, OH | 525 | 62% | 29.2% |
| Fox River, AK | 526 | 18% | 63.5% |
| Langford, SD | 525 | 48% | 0.7% |
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