Northwest Illinois
| YEAR | FIRST | SECOND | THIRD |
| 2008 | |||
| 2007 | |||
| 2006 | |||
| 2005 | |||
| 2004 | Sterling First | ||
| 2003 | Sterling First | Ottawa First | Rockford First |
| 2002 | Ottawa First | Rockford First | Sterling First |
| 2001 | Sterling First | Ottawa First | Wyoming First |
| 2000 | Sterling First | Ottawa First | Rockford First |
| 1999 | Sterling First | ||
| 1998 | Sterling First | ||
| 1997 | Sterling First | ||
| 1996 | Galesburg First | Canton First | Sterling First |
| 1995 | Sterling First | ||
| 1994 | |||
| 1993 | |||
| 1992 | |||
| 1991 | |||
| 1990 | |||
| 1989 | |||
| 1988 | |||
| 1987 | |||
| 1986 | |||
| 1985 | |||
| 1984 | |||
| 1983 | |||
| 1982 | |||
| 1981 | |||
| 1980 | |||
| 1979 | |||
| 1978 | |||
| 1977 | |||
| 1976 | |||
| 1975 | |||
| 1974 |