According to U.S. News, Long Island's top 10 high schools are:
1. Jericho High School; Jericho
2. Manhasset Secondary School; Manhasset
3. William A. Shine Great Neck South High School; Great Neck
4. Garden City High School; Garden City
5. South Side High School, Rockville Centre
6. Cold Spring Harbor High School; Cold Spring Harbor
7. The Wheatley School; Old Westbury
8. Syosset Senior High School; Syosset
9. Herricks High School; New Hyde Park
10. Harborfields High School; Greenlawn
The flaw in this list is that it ranks only public schools.
It is very likely that a listing of the best schools on Long island including publics, privates and religious such as Chaminade, St. A's, Friends, Kellenberg, Sacred Heart, Mercy, Portledge, Waldorf and Stony Brook would be significantly different (especially at the top).
Here are some very interesting stats
Almost 13 thousand kids go to Catholic High Schools on LI
(up almost 2o% percent in the past 10 years).
The draw to the Catholic High Schools is about 60% from catholic elementary/ 40% from public
Chaminade takes those kids that score best on the test.
Lastly, 100% of Chaminade kids applied and were accepted to colleges last year. Most public schools can't say that. | 
