If you are looking for the public school information, Easton Area High School information can be obtained at http://www.eastonsd.org.
Private School: Notre Dame High School: http://www.ndcrusaders.org
A Complete list of all schools can be found at: http://www.localschooldirectory.com/city-schools/Easton/PA including the Career Institute of Technology that students have the choice of attending while in High School for specialized Career Training.
All my best. If you have further questions feel free to contact me or the schools directly.