Great Schools.org provides listings nationwide on school performance, including parent ratings and reviews.
SchoolDigger.com is a school comparison site that provides test score data, demographic data, and neighborhood information.
State Report Card at the Office of Superintendent of Public Instruction provides current and historical test scores by school and district. It also provides other detailed information by school. To drill down for the data, use the search box on the top right-hand side of the OSPI site. Seattle School District Lookup Tool: Find What Schools Service Your Address School District Websites: