| Index | Hartford | South Dakota | National |
| Average Test Scores | 47% | 48% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 3 | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Hartford | South Dakota | National |
| Completed 8th grade | 89.0% | 89.1% | 84.3% |
| Completed high school | 88.7% | 86.8% | 83.0% |
| Completed some college | 65.6% | 60.4% | 59.4% |
| Completed associate degree | 47.2% | 38.5% | 38.5% |
| Completed bachelors | 34.8% | 27.5% | 30.3% |
| Completed masters | 7.9% | 8.1% | 11.5% |
| Completed professional degree | 2.2% | 2.5% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Hartford. Using the proficiency score averages, the average test scores for Hartford, SD schools is 47%. The average student to teacher ratio is 15:1. In Hartford, SD, an average of 89.0% of students have completed 8th grade and an average of 88.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dell Rapids, SD | 3,678 | 64% | 34.0% |
| Montrose, SD | 551 | 60% | 25.0% |
| Tea, SD | 5,714 | 57% | 18.8% |
| Colton, SD | 754 | 55% | 15.3% |
| Harrisburg, SD | 6,420 | 54% | 13.3% |
| Hartford, SD | 3,300 | 47% | 1.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Water Valley, MS | 3,300 | 36% | 26.0% |
| Elma, WA | 3,299 | 46% | 4.6% |
| Southampton, NY | 3,301 | 48% | 0.8% |
| Heavener, OK | 3,298 | 23% | 52.6% |
| Hauula, HI | 3,298 | 32% | 33.3% |
| Hartford, SD | 3,300 | 47% | 1.6% |
Here are the best places to live in South Dakota
See the best places to live in Hartford
Most Dangerous Cities In The US
These are the 10 cheapest cities in South Dakota