| Index | Seaford | New York | National | 
| Average Test Scores | 73% | 56% | 48% | 
| Student/Teacher ratio | n/a | n/a | 16:1 | 
| Total public schools | 5 | 4,060 | 79,221 | 
| Total private schools | 2 | 1,092 | 24,874 | 
| Total post-secondary schools | n/a | 483 | 7,963 | 

 
				
Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
 
				| Index | Seaford | New York | National | 
| Completed 8th grade | 93.8% | 83.5% | 84.3% | 
| Completed high school | 93.7% | 82.1% | 83.0% | 
| Completed some college | 71.0% | 59.5% | 59.4% | 
| Completed associate degree | 49.8% | 43.4% | 38.5% | 
| Completed bachelors | 40.0% | 34.7% | 30.3% | 
| Completed masters | 15.2% | 15.1% | 11.5% | 
| Completed professional degree | 3.4% | 4.2% | 3.3% | 
| Completed doctorate | 0.6% | 1.5% | 1.3% | 
There are a total of 5 public schools, 2 private schools and n/a post-secondary schools in Seaford. Using the proficiency score averages, the average test scores for Seaford, NY schools is 73%. The average student to teacher ratio is n/a. In Seaford, NY, an average of 93.8% of students have completed 8th grade and an average of 93.7% 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% | 
| Seaford, NY | 15,153 | 73% | 51.3% | 
| City | Population | Avg. Test Scores | National Avg. | 
| Olivehurst, CA | 15,149 | 26% | 46.6% | 
| Beech Grove, IN | 15,148 | 29% | 38.8% | 
| Newton, IA | 15,160 | 69% | 43.6% | 
| Weston, WI | 15,139 | 45% | 7.1% | 
| Graham, NC | 15,168 | 37% | 22.6% | 
| Seaford, NY | 15,153 | 73% | 51.3% |