| # | YEAR | SITE | DATES |
| 1 | 1916 | Cambridge, MA | 9/1-2 |
| 2 | 1917 | Cleveland, OH | 9/6-7 |
| 3 | 1918 | Hanover, NH | 9/6-7 |
| 4 | 1919 | Ann Arbor | 9/4-6 |
| 5 | 1920 | Chicago, IL | 9/6 |
| 6 | 1921 | Wellesley, MA | 9/6-8 |
| 7 | 1922 | Rochester, NY | 9/6-7 |
| 8 | 1923 | Poughkeepsie, NY | 9/5-6 |
| 1924 | ICM Toronto | ||
| 9 | 1925 | Ithaca, NY | 9/8-9 |
| 10 | 1926 | Columbus, OH | 9/7-8 |
| 11 | 1927 | Madison, WI | 9/5-6 |
| 12 | 1928 | Amherst, MA | 9/3-4 |
| 13 | 1929 | Boulder, CO | 8/26-27 |
| 14 | 1930 | Providence, RI | 9/8-9 |
| 15 | 1931 | Minneapolis, MN | 9/7-8/4 |
| 16 | 1932 | Los Angeles | 8/29-30 |
| 17 | 1933 | Chicago, IL | 6/19 |
| 18 | 1934 | Williamstown, MA | 9/3-4 |
| 19 | 1935 | Ann Arbor, MI | 9/9-10 |
| 20 | 1936 | Cambridge, MA | 8/31-9/4 |
| 21 | 1937 | University Park, PA | 9/6-7 |
| 1938 | NYC Columbia U. | AMS Semicentennial | |
| 22 | 1939 | Madison, WI | 9/4-5 |
| 23 | 1940 | Hanover, NH | 9/9-10 |
| 24 | 1941 | Chicago, IL | 9/1-4 |
| 25 | 1942 | Poughkeepsie, NY | 9/7-9 |
| 26 | 1943 | New Brunswick, NJ | 9/11-12 |
| 27 | 1944 | Wellesley, MA | 8/12-14 |
| 1945 | Meeting in Montreal canceled by Office of Defense Transport | ||
| 28 | 1946 | Ithaca, NY | 8/19-20 |
| 29 | 1947 | New Haven, CT | 9/1-2 |
| 30 | 1948 | Madison, WI | 9/6-7 |
| 31 | 1949 | Boulder, CO | 8/29-30 |
| 1950 | ICM Cambridge | 8/30-9/6 | |
| 32 | 1951 | Minneapolis, MN | 9/3-4 |
| 33 | 1952 | East Lansing, MI | 9/1-2 |
| 34 | 1953 | Kingston, ON | 8/31-9/1 |
| 35 | 1954 | Laramie, WY | 8/30-31 |
| 36 | 1955 | Ann Arbor, MI | 8/29-30 |
| 37 | 1956 | Seattle, WA | 8/20-21 |
| 38 | 1957 | University Park, PA | 8/26-29 |
| 39 | 1958 | Cambridge, MA | 8/25-28 |
| 40 | 1959 | Salt Lake City | 8/31-9/3 |
| 41 | 1960 | East Lansing, MI | 8/29-30 |
| 42 | 1961 | Stillwater, OK | 8/28-30 |
| 43 | 1962 | Vancouver, BC | 8/27-29 |
| 44 | 1963 | Boulder, Co | 8/26-28 |
| 45 | 1964 | Amherst, MA | 8/25-28 |
| 46 | 1965 | Ithaca, NY (50th) | 8/30-9/2 |
| 47 | 1966 | New Brunswick, NJ | 8/30-9/2 |
| 48 | 1967 | Toronto, ON | 8/29-9/1 |
| 49 | 1968 | Madison, WI | 8/27-30 |
| 50 | 1969 | Eugene, OR | 8/26-29 |
| 51 | 1970 | Laramie, WY | 8/25-28 |
| 52 | 1971 | University Park, PA | 8/31-9/3 |
| 53 | 1972 | Hanover, NH | 8/29-9/1 |
| 54 | 1973 | Missoula, MT | 8/13-14 |
| 1974 | ICM Vancouver | 8/21-29 | |
| 55 | 1975 | Kalamazoo, MI | 8/17-20 |
| 56 | 1976 | Toronto, ON | 8/26-28 |
| 57 | 1977 | Seattle, WA | 8/14-16 |
| 58 | 1978 | Providence, RI | 8/8-10 |
| 59 | 1979 | Duluth, MN | 8/22-25 |
| 60 | 1980 | Ann Arbor, MI | 8/18-22 |
| 61 | 1981 | Pittsburgh, PA | 8/16-19 |
| 62 | 1982 | Toronto, ON | 8/22-26 |
| 63 | 1983 | Albany, NY | 8/8-12 |
| 64 | 1984 | Eugene, OR | 8/15-19 |
| 65 | 1985 | Laramie, WY | 8/12-15 |
| 1986 | ICM Berkeley, CA | 8/3-11 | |
| 66 | 1987 | Salt Lake City, UT | 8/5-8 |
| 67 | 1988 | Providence, RI | 8/8-12 |
| 68 | 1989 | Boulder, CO | 8/7-10 |
| 69 | 1990 | Columbus, OH (75th) | 8/8-11 |
| 70 | 1991 | Orono, ME | 8-8-10 |
| 1992 | CMS Toronto | 6/12-14 | |
| 71 | 1993 | Vancouver, BC | 8/15-22 |
| 72 | 1994 | Minneapolis, MN | 8-14-17 |
| 73 | 1995 | Burlington, VT | 8/5-9 |
| 74 | 1996 | Seattle, WA | 8/9-12 |
| 75 | 1997 | Atlanta, GA | 8/1-4 |
| 76 | 1998 | Toronto, ON | 7/15-18 |
| 77 | 1999 | Providence, RI | 7/31-8/2 |
| 78 | 2000 | Los Angeles, CA | 8/3-5 |
| 79 | 2001 | Madison. WI | 8/2-4 |
| 80 | 2002 | Burlington, VT | 8/1-3 |
| 81 | 2003 | Boulder, CO | 7/31-8/2 |
| 82 | 2004 | Providence, RI | 8/12-14 |
| 83 | 2005 | Albuquerque, NM | 8/4-6 |
| 84 | 2006 | Knoxville, TN | 8/10-12 |
| 85 | 2007 | San Jose, CA | 8/3-5 |
| 86 | 2008 | Madison, WI | 7/31-8/2 |
| 87 | 2009 | Portland, OR | 8/6-8 |
| 88 | 2010 | Pittsburgh, PA | 8/5-6 |
| 89 | 2011 | ||
| 90 | 2012 | ||
| 91 | 2013 | ||
| 92 | 2014 | ||
| 93 | 2015 Washington, D.C.(100th) 8/5-8 |