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Idaho High School Activities Association

Idaho High School
Activities Association
Abbreviation IHSAA
Formation Template:If empty
Legal status Association
Purpose Athletic / Educational
Headquarters 8011 Ustick Road

43°38′01″N 116°16′57″W / 43.6337°N 116.2826°W / 43.6337; -116.2826Coordinates: 43°38′01″N 116°16′57″W / 43.6337°N 116.2826°W / 43.6337; -116.2826{{#coordinates:43.6337|-116.2826|type:landmark_region:US|||||| |primary |name=

Region served
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Official language
Executive Director
Ty Jones
Assistant Director
Julie Hammons
Affiliations National Federation of State High School Associations
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Formerly called
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The 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.[1]


IHSAA classifications are based on four-year enrollments (grades 9–12).[2]
The classifications for the state's 157 high schools for 2014–16 are:[3]

Classification Enrollment
(gr. 9–12)
Average per
class year
5A 1280 + 320 + 22
4A  640–1279 160–319 21
3A 320–639  80–159 21
2A 160–319 40–79 25
1A, Div. I  100–159 25–39 29
1A, Div. II   0–99  0–25 39
Total 157

Historic classifications

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 [4]
  • 1A was two divisions for football only; two divisions for volleyball and basketball in fall 2008.


  • I - North
  • II - North-Central
  • III - Southwest
  • IV - South-Central
  • V - Southeast
  • VI - East (northeast)

The six districts correspond to those used by the state's transportation department.[5]

5A Conferences

File:Idaho population map.png
Idaho population density map.

High Country Conference (5A) - (east)

Inland Empire League (5A) - (north)

Southern Idaho Conference (5A) - (southwest)

Currently District III only, the Southern Idaho Conference (SIC)
formerly included teams from Districts IV, V, and VI.
Three schools moved up to 5A from 4A in the summer of 2014: Bonneville, Columbia, and Nampa.

4A Conferences

File:Idaho ned.jpg
Elevation map of Idaho

Great Basin (East) Conference - (southeast)

Great Basin (West) Conference - (south central)

Inland Empire League (4A) - (north)

Southern Idaho Conference (4A) - (southwest)

3A Conferences

Intermountain League - (north)

Mountain Rivers Conference - (east)

Sawtooth Central Conference - (south central)

Snake River Valley Conference - (southwest)

Southeastern Idaho Conference - (southeast)

2A Conferences

Canyon Conference - (south central)

Central Idaho League - (north central)

Nuclear Conference - (east)

Southeastern Idaho Conference - (southeast)

Western Idaho Conference - (southwest)

1A Conferences

Long Pin Conference - (southwest)

Magic Valley Conference - (south central)

North Side Conference - (south central)

North Star Conference - (north)

Rocky Mountain Conference - (central)

Western Idaho Conference - (southwest)

White Pine League - (north central)

Neighboring states


  1. ^ "IHSAA". IHSAA. Retrieved February 1, 2009. 
  2. ^ "Class figures, 2012–14" (PDF). IHSAA. Retrieved October 5, 2012. 
  3. ^ "2014-2016 General classification and alignment" (PDF). IHSAA. November 22, 2013. Retrieved August 31, 2014. 
  4. ^ "State's A-1 schools to split". Spokesman-Review. September 23, 1999. p. C6. 
  5. ^ "Board of Directors". Idaho Department of Transportation. Retrieved November 22, 2012. 
  6. ^ "Burley withdraws from Southern Idaho Conference". Lewiston Morning Tribune. Associated Press. November 26, 1938. p. 9. 
  7. ^ Emerson, Paul (July 21, 1973). "Chances slim SIC will accept Bengals". Lewiston Morning Tribune. p. 15. 
  8. ^ "Plan for A-1 football playoffs recommended". Lewiston Morning Tribune. Associated Press. November 22, 1978. p. 1B. 
  9. ^ "SIC disbands; Boise schools look north". Lewiston Morning Tribune. November 15, 1979. p. 1B. 
  10. ^ "New prep league formed". Lewiston Morning Tribune. Associated Press. November 21, 1979. p. 3C. 

External links