| Index | Cobb | California | National |
| Average Test Scores | 52% | 43% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 8,308 | 79,221 |
| Total private schools | n/a | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | Cobb | California | National |
| Completed 8th grade | 90.6% | 81.1% | 84.3% |
| Completed high school | 90.6% | 79.8% | 83.0% |
| Completed some college | 75.5% | 61.5% | 59.4% |
| Completed associate degree | 47.1% | 39.8% | 38.5% |
| Completed bachelors | 21.9% | 32.0% | 30.3% |
| Completed masters | 5.8% | 11.9% | 11.5% |
| Completed professional degree | 1.2% | 3.9% | 3.3% |
| Completed doctorate | 0.0% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Cobb. Using the proficiency score averages, the average test scores for Cobb, CA schools is 52%. The average student to teacher ratio is n/a. In Cobb, CA, an average of 90.6% of students have completed 8th grade and an average of 90.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Healdsburg, CA | 11,924 | 50% | 4.8% |
| Hidden Valley Lake, CA | 5,948 | 50% | 4.2% |
| Geyserville, CA | 671 | 44% | 9.4% |
| Middletown, CA | 725 | 42% | 12.1% |
| Lakeport, CA | 4,947 | 37% | 22.0% |
| Cobb, CA | 805 | 52% | 8.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Imboden, AR | 805 | 33% | 31.9% |
| Florence, MT | 805 | 47% | 2.8% |
| Story, WY | 805 | 50% | 4.2% |
| Patterson, GA | 805 | 71% | 46.9% |
| Madrid, NY | 805 | 42% | 12.5% |
| Cobb, CA | 805 | 52% | 8.3% |
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