The Boise School District #1 is one of 115 public school districts in Idaho, United States. The Boise School District serves a 456 square mile area of Ada County and is headquartered in Boise, Idaho. The district was founded in 1865 under the auspices of Idaho Territory. Formerly the largest school district in the state, it now ranks second to the adjacent West Ada School District #2, which administers several schools in western Boise.[1] Peak enrollment in the Boise School District was reached in 1997 at 27,070.[2]
The Boise School District #1 is the second-oldest school system in Idaho. The oldest is in Lewiston, founded three years earlier by the Washington Territory government.