| Index | Downey | California | National |
| Average Test Scores | n/a | 10% | 48% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 25 | 8,308 | 79,221 |
| Total private schools | 14 | 3,438 | 24,874 |
| Total post-secondary schools | 2 | 1,085 | 7,963 |
| Index | Downey | California | National |
| Completed 8th grade | 75.3% | 81.1% | 84.3% |
| Completed high school | 74.2% | 79.8% | 83.0% |
| Completed some college | 52.5% | 61.5% | 59.4% |
| Completed associate degree | 30.1% | 39.8% | 38.5% |
| Completed bachelors | 21.9% | 32.0% | 30.3% |
| Completed masters | 6.4% | 11.9% | 11.5% |
| Completed professional degree | 1.3% | 3.9% | 3.3% |
| Completed doctorate | 0.5% | 1.6% | 1.3% |
There are a total of 25 public schools, 14 private schools and 2 post-secondary schools in Downey. Using the proficiency score averages, the average test scores for Downey, CA schools is n/a. The average student to teacher ratio is 21:1. In Downey, CA, an average of 75.3% of students have completed 8th grade and an average of 74.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Downey, CA | 113,223 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Round Rock, TX | 112,767 | 56% | 15.6% |
| Wilmington, NC | 113,724 | 45% | 6.3% |
| Miami Gardens, FL | 112,514 | 47% | 3.1% |
| Lehigh Acres, FL | 112,279 | 44% | 8.0% |
| Odessa, TX | 114,258 | 35% | 26.9% |
| Downey, CA | 113,223 | n/a |
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