| Index | Kellogg | Iowa | National |
| Average Test Scores | n/a | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Kellogg | Iowa | National |
| Completed 8th grade | 87.4% | 89.2% | 84.3% |
| Completed high school | 83.3% | 87.7% | 83.0% |
| Completed some college | 49.6% | 59.8% | 59.4% |
| Completed associate degree | 15.9% | 38.4% | 38.5% |
| Completed bachelors | 6.5% | 27.2% | 30.3% |
| Completed masters | 0.4% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Kellogg. Using the proficiency score averages, the average test scores for Kellogg, IA schools is n/a. The average student to teacher ratio is n/a. In Kellogg, IA, an average of 87.4% of students have completed 8th grade and an average of 83.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sully, IA | 962 | 81% | 69.4% |
| Laurel, IA | 194 | 80% | 66.7% |
| Grinnell, IA | 9,069 | 79% | 64.6% |
| Monroe, IA | 1,810 | 78% | 63.0% |
| Baxter, IA | 935 | 77% | 60.4% |
| Kellogg, IA | 649 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Bucklin, KS | 649 | 26% | 45.8% |
| Port Leyden, NY | 649 | 55% | 13.5% |
| Gibsland, LA | 649 | 55% | 13.5% |
| Sandy Hook, KY | 649 | 45% | 5.6% |
| Howells, NE | 648 | 77% | 60.4% |
| Kellogg, IA | 649 | n/a |
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