| Index | Cullom | Illinois | National |
| Average Test Scores | 25% | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Cullom | Illinois | National |
| Completed 8th grade | 88.1% | 86.2% | 84.3% |
| Completed high school | 85.8% | 84.7% | 83.0% |
| Completed some college | 43.6% | 61.8% | 59.4% |
| Completed associate degree | 18.0% | 40.7% | 38.5% |
| Completed bachelors | 13.1% | 32.9% | 30.3% |
| Completed masters | 4.1% | 12.7% | 11.5% |
| Completed professional degree | 1.7% | 3.4% | 3.3% |
| Completed doctorate | 0.6% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Cullom. Using the proficiency score averages, the average test scores for Cullom, IL schools is 25%. The average student to teacher ratio is n/a. In Cullom, IL, an average of 88.1% of students have completed 8th grade and an average of 85.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kempton, IL | 317 | 50% | 4.2% |
| Forrest, IL | 995 | 46% | 3.6% |
| Piper City, IL | 855 | 42% | 12.5% |
| Gilman, IL | 1,734 | 41% | 15.1% |
| Fairbury, IL | 3,604 | 39% | 18.2% |
| Cullom, IL | 501 | 25% | 47.9% |
| City | Population | Avg. Test Scores | National Avg. |
| McCurtain, OK | 501 | 32% | 32.8% |
| Ribera, NM | 501 | 21% | 55.7% |
| Mandaree, ND | 500 | 21% | 56.3% |
| Eustis, NE | 502 | 45% | 6.3% |
| Sterling, NE | 502 | 58% | 19.8% |
| Cullom, IL | 501 | 25% | 47.9% |
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