Northwestern Conference (IHSAA)
Former members
Columns: School | City | Mascot | County | Year joined | Previous Conference | Year Left | Conference Joined
East Chicago Roosevelt | East Chicago | Roughriders | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | East Chicago Washington | East Chicago | Senators | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | Gary Emerson | Gary | Tornado | 45 Lake | 1963 | Northern Indiana | 1981 | none (school closed, reopened as Emerson VPA) | Gary Froebel | Gary | Blue Devils | 45 Lake | 1963 | Northern Indiana | 1969 | none (school became MS, closed 1977) | Gary Mann | Gary | Horsemen | 45 Lake | 1963 | Northern Indiana | 2004 | none (school closed) | Gary Tolleston | Gary | Blue Raiders | 45 Lake | 1963 | Northern Indiana | 1969 | none (school became MS, closed 2007) | Hammond | Hammond | Wildcats | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | Hammond Clark | Hammond | Pioneers | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | Hammond Tech | Hammond | Tigers | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | Valparaiso | Valparaiso | Vikings | 64 Porter | 1963 | Northern Indiana | 1968 | Independents | Whiting | Whiting | Oilers | 45 Lake | 1963 | Northern Indiana | 1968 | Indiana Lake Shore | Hammond Gavit | Hammond | Gladiators | 45 Lake | 1966 | Independents | 1968 | Indiana Lake Shore | Hammond Morton | Hammond | Governors | 45 Lake | 1966 | Independents | 1968 | Indiana Lake Shore | Hobart | Hobart | Brickies | 45 Lake | 1966 | Independents | 1968 | Independents | Andrean | Gary | 59ers | 45 Lake | 1968 | Independents | 1975 | Independents (school moved to Merrillville ) | Gary Wirt | Gary | Troopers | 45 Lake | 1970 | Calumet | 2009 | school closed