To determine the best public high school in every state, 24/7 Wall St. reviewed rankings for all public schools from school and neighborhood data clearinghouse Niche. Data on rank, number of students, student-teacher ratio, and average SAT score, also came from Niche. Data on median household income by school district, came from the U.S. Census Bureau’s American Community Survey, when available. All ACS data are five-year estimates. In cases where income data at the school district level was unavailable, or in cases where a high school did not fall within the jurisdiction of a school district, median household income data came from Niche.