Idaho High School Activities Association 250px Abbreviation IHSAA Formation 1925 Legal status Association Purpose/focus Athletic / Educational Headquarters 8011 Ustick Road Location Boise, Idaho Coordinates </td></tr> 43°38′01″N 116°16′57″W / 43.6337, -116.2826 Region served Idaho</td></tr> Official languages English</td></tr> Executive Director Ty Jones</td></tr> Assistant Director Julie Hammons</td></tr> Affiliations National Federation of State High School Associations</td></tr>
Idaho High School Activities Association ( IHSAA) oversees high school athletics and activities in the state of Idaho. Idaho high schools are classified in five categories, based on enrollment, for league competition and state playoffs and championships.
Schools primarily compete within their own classification for regular season play, but are allowed to play other schools one classification above or below them in most sports.
IHSAA classifications are based on four-year enrollments (grades 9–12).
 The classifications for the state's 161 high schools for 2018–20 are: 
Classification Enrollment (gr. 9–12) Average per class year Member schools
5A 1280 + 320 + 18
4A 640–1279 160–319 29
3A 320–639 80–159 20
2A 160–319 40–79 26
1A, Div. I 100–159 25–39 28
1A, Div. II 0–99 0–25 40
Historic classifications Edit
Years 5A 4A 3A 2A 1A (I) 1A (II)
2008– 5A 4A 3A 2A 1A (I) 1A (II)
2001–2008 5A 4A 3A 2A 1A (FB: I, II)
2000–2001 A-1 (I) A-1 (II) A-2 A-3 A-4
1984–2000 A-1 (FB: I, II) A-2 A-3 A-4
1963–1984 A-1 A-2 A-3 A-4
1957–1963 AAA AA A
1937–1957 A B
1917–1937 single classification
A-1 was split into two divisions for football in fall 1984, all sports in fall 2000
 1A was two divisions for football only; two divisions for volleyball and basketball in fall 2008.
File:Idaho Transportation Department districts.png
District Geographical area
II North Central
IV South Central
The six districts correspond to those used by the state's
5A Conferences Edit
4A Conferences Edit
3A Conferences Edit
2A Conferences Edit
1A Conferences Edit
Division I Edit
Division II Edit
Neighboring states Edit
"IHSAA". IHSAA . http://www.idhsaa.org/ . Retrieved February 1, 2009.
"Class figures, 2012–14". IHSAA. Archived from the original on July 29, 2012 . https://web.archive.org/web/20120729091512/http://www.idhsaa.org/regforms/1214ClassFigs.pdf . Retrieved October 5, 2012.
"2018-2020 General classification and alignment". IHSAA. September 21, 2018 . http://idhsaa.org/manage/articlefiles/105-2018-2020%20General.pdf . Retrieved February 28, 2019.
"Four former titlists playing in A-1 tournament at Boise". Lewiston Morning Tribune. Associated Press ((Idaho)): p. 10. March 11, 1964 . . https://news.google.com/newspapers?id=CbNeAAAAIBAJ&sjid=7C8MAAAAIBAJ&pg=4271%2C1841558
"State's A-1 schools to split". Spokesman-Review: p. C6. September 23, 1999 . . https://news.google.com/newspapers?id=-7oyAAAAIBAJ&sjid=JvIDAAAAIBAJ&pg=6710,1487861 ↑
"Board of Directors". Idaho Department of Transportation . http://itd.idaho.gov/Board/ . Retrieved November 22, 2012.
External links Edit
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