The IHSAA released the classifications for all class sports (besides baseball & softball) for the 2017-18 & 2018-19 scholastic years. Below is a listing of each sport, where each Region team is classified and any change from the previous year.
FOOTBALL
6A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton
5A: LaPorte (down from 6A), Michigan City, Munster (up from 4A)
4A: Morton, Hobart, EC Central, Lowell, Highland, KV, West Side, Gavit, Hammond High (up from 3A), Griffith (up from 3A)
3A: Clark (down from 4A), Hanover Central, Calumet, Wheeler, Andrean (down from 4A*)
2A: Rensselaer (down from 3A*), Bishop Noll, Boone Grove, Roosevelt, Bowman, North Newton, River Forest, Whiting, Lake Station (up from 1A)
1A: North Judson, South Central
*lower due to not meeting success factor points
BOYS BASKETBALL
4A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton, LaPorte, Michigan City, Munster, Morton, Hobart, EC Central, Lowell, Highland, KV (up from 3A)
3A: West Side (down from 4A), Gavit, Hammond High, Griffith, Clark, Hanover Central, Calumet, Gary Lighthouse, Wheeler, Rensselaer
2A: Bishop Noll, Boone Grove, Andrean (down from 3A), Roosevelt, Bowman, North Newton, River Forest, Whiting, Lake Station, Hebron, Marquette Catholic (success factor)
1A: South Central, Hammond Academy, Kouts, Gary 21st Century, Washington Twp., Morgan Twp., LaCrosse
GIRLS BASKETBALL
4A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton, LaPorte, Michigan City, Munster, Morton, Hobart, EC Central, Lowell, Highland, KV
3A: West Side (down from 4A), Gavit, Hammond High, Griffith, Clark, Hanover Central, Calumet, Gary Lighthouse, Wheeler, Rensselaer
2A: Bishop Noll, Boone Grove, Andrean (down from 3A), Roosevelt, Bowman, North Newton, River Forest, Whiting, Lake Station, Hebron
1A: South Central, Hammond Academy, Kouts, Marquette Catholic, Gary 21st Century, Washington Twp., Morgan Twp., LaCrosse
BOYS SOCCER – New three class system with 101 schools in each class
3A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton, LaPorte, Michigan City, Munster, Morton, Hobart, EC Central, Lowell, Highland, KV
2A: Gavit, Hammond High, Griffith, Clark, Hanover Central, Gary Lighthouse, Wheeler, Rensselaer, Bishop Noll,
1A: Boone Grove, Andrean, Hebron, Hammond Academy, Kouts, Marquette Catholic, Washington Twp., Morgan Twp.
GIRLS SOCCER – New three class system with 89 schools in each class
3A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton, LaPorte, Michigan City, Munster, Morton, Hobart, EC Central, Lowell
2A: Highland, KV, Gavit, Hammond High, Griffith, Clark, Hanover Central, Andrean
1A: Wheeler, Rensselaer, Bishop Noll, Boone Grove, Hebron, Kouts, Marquette Catholic, Washington Twp., Morgan Twp.
VOLLEYBALL
4A: Lake Central, Crown Point, Portage, Merrillville, Valparaiso, Chesterton, LaPorte, Michigan City, Munster, Morton, Hobart, EC Central, Lowell, Highland
3A: KV (down from 4A), West Side (down from 4A), Gavit, Hammond High, Griffith, Clark, Hanover Central, Calumet, Gary Lighthouse, Wheeler
2A: Rensselaer (down from 3A), Bishop Noll, Boone Grove, Andrean (down from 3A), Roosevelt, Bowman, North Newton, River Forest, Whiting, Lake Station, Hebron