| Index | Walnut Grove CDP (Hardin County) | Tennessee | National |
| Average Test Scores | n/a | 35% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 1,390 | 79,221 |
| Total private schools | n/a | 430 | 24,874 |
| Total post-secondary schools | n/a | 189 | 7,963 |
| Index | Walnut Grove CDP (Hardin County) | Tennessee | National |
| Completed 8th grade | 53.8% | 82.0% | 84.3% |
| Completed high school | 44.1% | 79.9% | 83.0% |
| Completed some college | 23.5% | 53.2% | 59.4% |
| Completed associate degree | 23.5% | 32.2% | 38.5% |
| Completed bachelors | 0.0% | 25.4% | 30.3% |
| Completed masters | 0.0% | 9.3% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 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 Walnut Grove CDP (Hardin County). Using the proficiency score averages, the average test scores for Walnut Grove CDP (Hardin County), TN schools is n/a. The average student to teacher ratio is n/a. In Walnut Grove CDP (Hardin County), TN, an average of 53.8% of students have completed 8th grade and an average of 44.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Guthrie, KY | 1,301 | 61% | 26.0% |
| Adairville, KY | 872 | 54% | 12.5% |
| Clarksville, TN | 156,092 | 44% | 7.4% |
| Pleasant View, TN | 4,660 | 37% | 22.2% |
| Cedar Hill, TN | 271 | 29% | 39.6% |
| Walnut Grove CDP (Hardin County), TN | 252 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wynot, NE | 252 | 52% | 7.6% |
| Maxwell, NE | 252 | 36% | 25.5% |
| Ovid, CO | 252 | 50% | 4.2% |
| Dixon, MT | 252 | 50% | 4.2% |
| Watersmeet, MI | 253 | 27% | 43.8% |
| Walnut Grove CDP (Hardin County), TN | 252 | n/a |
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