| Index | Plainview | New York | National | 
| Average Test Scores | 83% | 56% | 48% | 
| Student/Teacher ratio | n/a | n/a | 16:1 | 
| Total public schools | 9 | 4,060 | 79,221 | 
| Total private schools | 5 | 1,092 | 24,874 | 
| Total post-secondary schools | n/a | 483 | 7,963 | 

 
				
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				| Index | Plainview | New York | National | 
| Completed 8th grade | 95.4% | 83.5% | 84.3% | 
| Completed high school | 95.0% | 82.1% | 83.0% | 
| Completed some college | 80.1% | 59.5% | 59.4% | 
| Completed associate degree | 68.7% | 43.4% | 38.5% | 
| Completed bachelors | 62.2% | 34.7% | 30.3% | 
| Completed masters | 30.3% | 15.1% | 11.5% | 
| Completed professional degree | 8.2% | 4.2% | 3.3% | 
| Completed doctorate | 1.4% | 1.5% | 1.3% | 
There are a total of 9 public schools, 5 private schools and n/a post-secondary schools in Plainview. Using the proficiency score averages, the average test scores for Plainview, NY schools is 83%. The average student to teacher ratio is n/a. In Plainview, NY, an average of 95.4% of students have completed 8th grade and an average of 95.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. | 
| Sea Cliff, NY | 5,045 | 92% | 91.7% | 
| Cedarhurst, NY | 6,642 | 91% | 89.6% | 
| Old Westbury, NY | 4,618 | 91% | 88.5% | 
| Jericho, NY | 13,928 | 90% | 87.1% | 
| Old Bethpage, NY | 5,450 | 90% | 86.5% | 
| Plainview, NY | 26,267 | 83% | 72.1% | 
| City | Population | Avg. Test Scores | National Avg. | 
| Superior, WI | 26,260 | 43% | 10.5% | 
| Galt, CA | 26,235 | 43% | 10.9% | 
| Clarksburg, MD | 26,234 | 60% | 24.7% | 
| Smithtown, NY | 26,197 | 67% | 40.4% | 
| Canyon Lake, TX | 26,338 | 47% | 2.3% | 
| Plainview, NY | 26,267 | 83% | 72.1% |