The best school information is found at the New Jersey School Report Card at http://education.state.nj.us/rc/rc08/index.html
which is updated annually by the State of New Jersey. The information is extremely detailed and comprehensive. The easiest way to look up a school district is to choose the County/District option; the county is Bergen and the schools are in alphabetical order. Edgewater students go to Leonia High School. The Edgewater School District has it's own website at http://www.evgschool.org/
Frankly, ratings are fleeting - one year one school is up, another year the same school can be down and things don't change that quickly in education. Look at the information on the New Jersey School Report Card; I'm sure it will be quite helpful.