Worldcon
1939
Nycon (Worldcon 1)
New York, July 2–4, 1939
1940
Chicon (Worldcon 2)
Chicago, September 1–2, 1940
1941
Denvention (Worldcon 3)
Denver, July 4–6, 1941
1946
Pacificon (Worldcon 4)
Los Angeles, 1942 July 4–7, 1946
1947
Philcon (Worldcon 5)
Philadelphia, August 30–September 1, 1947
1948
Torcon (Worldcon 6)
Toronto, July 3–5, 1948
1949
Cinvention (Worldcon 7)
Cincinnati, September 3–5, 1949
1950
NorWesCon (Worldcon 8)
Portland, September 1–4, 1950
1951
Nolacon (Worldcon 9)
New Orleans, September 1–3, 1951
1952
Chicon II (Worldcon 10)
Chicago, August 30–September 1, 1952
1953
Philcon II (Worldcon 11)
Philadelphia, September 5–7, 1953
1954
SFCon (Worldcon 12)
San Francisco, September 3–6, 1954
1955
Clevention (Worldcon 13)
Cleveland, September 2–5, 1955
1956
NyCon II (Worldcon 14)
New York, August 31–September 3, 1956
1957
Loncon (Worldcon 15)
London, September 6–9, 1957
1958
Solacon (Worldcon 16)
Los Angeles, August 29–September 1, 1958
1959
Detention (Worldcon 17)
Detroit, September 4–7, 1959
1960
Pittcon (Worldcon 18)
Pittsburgh, September 3–5, 1960
1961
Seacon (Worldcon 19)
Seattle, September 2–4, 1961
1962
Chicon III (Worldcon 20)
Chicago, August 31–September 3, 1962
1963
Discon (Worldcon 21)
Washington, D.C., August 31–September 2, 1963
1964
Pacificon II (Worldcon 22)
Oakland, September 4–7, 1964
1965
Loncon II (Worldcon 23)
London, August 27–30, 1965
1966
Tricon (Worldcon 24)
Cleveland, September 1–5, 1966
1967
NyCon3 (Worldcon 25)
New York, August 31–September 4, 1967
1968
Baycon (Worldcon 26)
Berkeley, August 29–September 2, 1968
1969
St. Louiscon (Worldcon 27)
St. Louis, August 28–September 1, 1969
1970
Heicon '70 (Worldcon 28)
Heidelberg, Germany, August 20–24, 1970
1971
Noreascon (Worldcon 29)
Boston, September 2–6, 1971
1972
L.A.Con (Worldcon 30)
Los Angeles, September 1–4, 1972
1973
Torcon II (Worldcon 31)
Toronto, August 31–September 3, 1973
1974
Discon II (Worldcon 32)
Washington, D.C., August 29–September 2, 1974
1975
Aussiecon (Worldcon 33)
Melbourne, Australia, August 14–17, 1975
1976
MidAmeriCon (Worldcon 34)
Kansas City, September 2–6, 1976
1977
SunCon (Worldcon 35)
Miami Beach, August 2–5, 1977
1978
IguanaCon II (Worldcon 36)
Phoenix, August 30–September 4, 1978
1979
Seacon '79 (Worldcon 37)
Brighton, UK, August 23–26, 1979
1980
Noreascon Two (Worldcon 38)
Boston, August 29–September 1, 1980
1981
Denvention Two (Worldcon 39)
Denver, September 3–7, 1981
1982
Chicon IV (Worldcon 40)
Chicago, September 2–6, 1982
1983
ConStellation (Worldcon 41)
Baltimore, September 1–5, 1983
1984
L.A.con II (Worldcon 42)
Los Angeles, August 30–September 3, 1984
1985
Aussiecon Two (Worldcon 43)
Melbourne, Australia, August 22–26, 1985
1986
ConFederation (Worldcon 44)
Atlanta, August 28–September 1, 1986
1987
Conspiracy '87 (Worldcon 45)
Brighton, UK, August 27–September 1, 1987
1988
Nolacon II (Worldcon 46)
New Orleans, September 1–5, 1988
1989
Noreascon 3 (Worldcon 47)
Boston, August 31–September 4, 1989
1990
ConFiction (Worldcon 48)
The Hague, Netherlands, August 23–27, 1990
1991
Chicon V (Worldcon 49)
Chicago, August 29–September 2, 1991
1992
MagiCon (Worldcon 50)
Orlando, September 3–7, 1992
1993
ConFrancisco (Worldcon 51)
San Francisco, September 2–6, 1993
1994
ConAdian (Worldcon 52)
Winnipeg, September 1–5, 1994
1995
Intersection (Worldcon 53)
Glasgow, August 24–28, 1995
1996
L.A.con III (Worldcon 54)
Los Angeles, August 29–September 2, 1996
1997
LoneStarCon 2 (Worldcon 55)
San Antonio, August 28–September 1, 1997
1998
BucConeer (Worldcon 56)
Baltimore, August 5–9, 1998
1999
Aussiecon Three (Worldcon 57)
Melbourne, Australia, September 2–6, 1999
2000
Chicon 2000 (Worldcon 58)
Chicago, August 31–September 4, 2000
2001
Millennium Philcon (Worldcon 59)
Philadelphia, August 29–September 3, 2001
2002
ConJosé (Worldcon 60)
San Jose, August 29–September 2, 2002
2003
Torcon 3 (Worldcon 61)
Toronto, August 28–September 1, 2003
2004
Noreascon 4 (Worldcon 62)
Boston, September 2–6, 2004
2005
Interaction (Worldcon 63)
Glasgow, August 4–8, 2005
2006
L.A.con IV (Worldcon 64)
Los Angeles, August 23–27, 2006
2007
Nippon 2007 (Worldcon 65)
Yokohama, Japan, August 30–September 3, 2007
2008
Denvention 3 (Worldcon 66)
Denver, August 6–10, 2008
2009
Anticipation (Worldcon 67)
Montreal, August 6–10, 2009
2010
Aussiecon 4 (Worldcon 68)
Melbourne, Australia, September 2–6, 2010
2011
Renovation (Worldcon 69)
Reno, NV, August 17–21, 2011
2012
Chicon 7 (Worldcon 70)
Chicago, August 30–September 3, 2012
2013
LoneStarCon 3 (Worldcon 71)
San Antonio, August 29–September 2, 2013
2014
Loncon 3 (Worldcon 72)
London, August 14–18, 2014
2015
Sasquan (Worldcon 73)
Spokane, WA, August 19–23, 2015
2016
MidAmeriCon 2 (Worldcon 74)
Kansas City, August 17–21, 2016
2017
Worldcon 75
Helsinki, Finland, August 9–13, 2017
2018
ConJose 2 (Worldcon 76)
San Jose, August 16–20, 2018
2019
Dublin 2019 (Worldcon 77)
Dublin, Ireland, August 15–19, 2019
2020
CoNZealand (Worldcon 78)
Wellington, NZ Online, July 29–August 2, 2020
2021
Discon III (Worldcon 79)
Washington, D.C., December 15–19, 2021
2022
Chicon 8 (Worldcon 80)
Chicago, September 1–5, 2022
2023
Chengdu Worldcon (Worldcon 81)
Chengdu, China, October 18-22, 2023
2024
Glasgow 2024 (Worldcon 82)
Glasgow, Scotland, August 8–12, 2024
2025
Seacon '25 (Worldcon 83)
Seattle, August 13-17, 2025