The best public high schools in every state

School-ranking website Niche rated the best public high schools in every US state.To determine the best public high schools, the site looked at SAT and ACT scores, reading and math proficiency, graduation rate, AP enrollment, and diversity, among many other factors.The best public high school in the US is Illinois Mathematics and Science Academyin Aurora, Illinois.Visit Business Insider's homepage for more stories.There are a lot of high schools in the United States — 18,841, to be exact.To find the best one in each state, school-ranking website Niche rated the high schools according to several factors, including SAT and ACT scores, reading and math proficiency, graduation rate, AP enrollment, and diversity.Illinois Mathematics and Science Academy in Aurora, Illinois, scored higher than any other school, making it the #1 high school in the country.Here are the top high schools in each state.