| 2025 | June 2-6 | Edmonton, Alberta, Canada |
| 2024 | June 24-28 | The Ohio State University-ATI Wooster, Wooster, OH |
2023* |
June 20-24 |
New Mexico State University, Las Cruces, NM |
2019 |
June 18-21 |
College of Southern Idaho, Twin Falls, ID |
2018 |
June 12-15 |
Iowa State University, Ames, IA |
2017 |
June 28-July 1 |
Purdue University, West Lafayette, IN |
2016 |
June 21-24 |
University of Hawaii at Manoa, Honolulu, HI |
2015 |
June 16-20 |
University of Georgia, Athens, GA |
2014 |
June 25-28 |
Montana State University, Bozeman, MT |
2013 |
June 25-29 |
Virginia Tech University, Blacksburg, VA |
2012 |
June 26-29 |
University of Wisconsin - River Falls, River Falls, WI |
2011 |
June 14-17 |
University of Alberta, Edmonton, Canada |
2010 |
June 22-25 |
Pennsylvania State University, State College, PA |
2009 |
June 16-20 |
Oklahoma State University, Stillwater, OK |
2008 |
June 10-13 |
Utah State University, Logan, UT |
2007 |
June 20-22 |
University of Illinois, Urbana-Champaign, IL |
2006 |
June 7-9 |
University of British Columbia, Vancouver, Canada |
2005 |
June 14-17 |
The Ohio State University-ATI Wooster, Wooster, OH |
2004 |
June 21-23 |
University of Florida, Gainesville, FL |
2003 |
June 18-21 |
Cal Poly State University, San Luis Obispo, CA |
2002 |
June 19-22 |
University of Nebraska, Lincoln, NE |
2001 |
June 20-23 |
University of Saskatchewan, Saskatoon, SK, Canada |
2000 |
June 18-21 |
Delaware Valley College, Doylestown, PA |
1999 |
June 20-23 |
Virginia Tech University, Blacksburg, VA |
1998 |
June 21-24 |
Wenatchee Valley College, WA |
1997 |
June 22-25 |
Iowa State University, Ames, IA |
1996 |
June 15-18 |
University of Minnesota – Crookston, Crookston, MN |
1995 |
June 18-21 |
Pennsylvania State University, State College, PA |
1994 |
June 12-15 |
Texas A&M University, College Station, TX |
1993 |
June 13-16 |
College of Southern Idaho, Twin Falls, ID |
1992 |
June 20-23 |
University of Wisconsin - River Falls, River Falls, WI |
1991 |
June 16-19 |
University of Alberta, Edmonton, Canada |
1990 |
June 17-20 |
SUNY Ag and Tech - Morrisville, Morrisville, NY |
1989 |
June 11-14 |
University of Tennessee, Knoxville, TN |
1988 |
June 26-29 |
Oregon State University, Corvallis, OR |
1987 |
June 14-17 |
University of Missouri – Columbia, Columbia, MO |
1986 |
June 15-18 |
Ridgetown College, Ontario, Canada |
1985 |
June 16-19 |
North Carolina State University, Raleigh, NC |
1984 |
June 17-20 |
Washington State University, Pullman, WA |
1983 |
June 12-15 |
Kansas State University, Manhattan, KS |
1982 |
June 13-16 |
Delaware Valley College, Doylestown, PA |
1981 |
June 7-10 |
Louisiana State University, Baton Rouge, LA |
1980 |
June 15-18 |
New Mexico State University, Las Cruces, NM |
1979 |
June 10-13 |
University of Minnesota, Minneapolis, MN |
1978 |
June 11-14 |
University of Manitoba, Winnipeg, Canada |
1977 |
June 12-15 |
Pennsylvania State University, State College, PA |
1976 |
June 16-18 |
Texas Tech University, Lubbock, TX |
1975 |
June 16-18 |
California State University – Fresno, Fresno, CA |
1974 |
June 19-21 |
University of Nebraska – Lincoln, Lincoln, NE |
1973 |
June 13-15 |
SUNY Ag and Tech - Cobleskill, Cobleskill, NY |
1972 |
June 14-16 |
Middle Tennessee State University, Murfreesboro, TN |
1971 |
June 16-18 |
Northeast Jr. College, Sterling, CO |
1970 |
June 24-26 |
University of Illinois, Champaign, IL |
1969 |
June 16-18 |
SUNY Ag and Tech - Alfred, NY |
1968 |
April 7-9 |
California Polytechnic Institute, San Luis Obispo, CA |
1967 |
April 2-4 |
Arizona State University, Tempe, AZ |
1966 |
April 17-19 |
Southeast Missouri State College, Cape Girardeau, MO |
1965 |
April 25-27 |
Wilmington College, Wilmington, OH |
1964 |
April 5-7 |
Sam Houston State College, Huntsville, TX |
1963 |
March 31- Apr 2 |
Ft. Hays State College, Hays, KS |
1962 |
March 18-20 |
Fresno State College, Fresno, CA |
1961 |
March 23-25 |
Abilene Christian College, Abilene, TX |
1960 |
March 17-19 |
Southwest Missouri State College, Springfield, MO |
1959 |
March 5-7 |
Berea College, Berea, KY |
1958 |
March 20-22 |
Arkansas State College, Jonesboro, AR |
1957 |
March 28-30 |
Stephen F Austin State College, Nacogdoches, TX |
1956 |
March 8-10 |
Central Missouri State College, Warrensburg, MO |
1955 |
March 11-12 |
Central Missouri State College, Warrensburg, MO |