Six Idaho Schools, Four in Boise, Ranked Among Best U.S. High Schools

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All four of the Boise School District's traditional high schools—Boise, Borah, Capital and Timberline—have again been ranked in the Washington Post's annual listing of America's best high schools for "effectively preparing students for college." All four Boise schools ranked among the top 9 percent of approximately 22,000 public high schools in the United States. The schools made the list for the the third consecutive year.

The Washington Post's formula for ranking is as follows:

Divide the number of Advanced Placement, International Baccalaureate or other college-level tests a school gave in 2011 by the number of graduating seniors. The formula is called the Challenge Index. The schools were then ranked according to the ratio.

Boise High had an AP ratio to student of 2.963; Borah High had an AP test ratio to student of 1.261; Capital High had an AP test ratio to student of 1.304; and Timberline had an AP test ratio to student of 1.979.

Two other Idaho schools made the list: North Star Charter School in Eagle (ranked 82nd in the nation); and Coeur d'Alene Charter Academy (ranked 116th in the nation).