| Index | Atwater | California | National |
| Average Test Scores | 38% | 43% | 48% |
| Student/Teacher ratio | 20:1 | 20:1 | 16:1 |
| Total public schools | 11 | 8,308 | 79,221 |
| Total private schools | 3 | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | Atwater | California | National |
| Completed 8th grade | 70.6% | 81.1% | 84.3% |
| Completed high school | 69.4% | 79.8% | 83.0% |
| Completed some college | 47.5% | 61.5% | 59.4% |
| Completed associate degree | 22.1% | 39.8% | 38.5% |
| Completed bachelors | 13.7% | 32.0% | 30.3% |
| Completed masters | 4.3% | 11.9% | 11.5% |
| Completed professional degree | 0.9% | 3.9% | 3.3% |
| Completed doctorate | 0.3% | 1.6% | 1.3% |
There are a total of 11 public schools, 3 private schools and n/a post-secondary schools in Atwater. Using the proficiency score averages, the average test scores for Atwater, CA schools is 38%. The average student to teacher ratio is 20:1. In Atwater, CA, an average of 70.6% of students have completed 8th grade and an average of 69.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Winton, CA | 11,619 | 44% | 7.5% |
| Snelling, CA | 115 | 40% | 16.7% |
| Hilmar-Irwin, CA | 5,937 | 40% | 16.9% |
| Ballico, CA | 508 | 37% | 22.9% |
| Denair, CA | 5,702 | 35% | 27.8% |
| Atwater, CA | 30,336 | 38% | 20.4% |
| City | Population | Avg. Test Scores | National Avg. |
| North Tonawanda, NY | 30,338 | 57% | 18.6% |
| Cibolo, TX | 30,333 | 57% | 18.5% |
| Poughkeepsie, NY | 30,341 | 47% | 2.6% |
| Garner, NC | 30,345 | 38% | 21.9% |
| Syracuse, UT | 30,366 | 51% | 5.6% |
| Atwater, CA | 30,336 | 38% | 20.4% |
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