Long-running conventions

The first sf convention was held in 1936 in Philadelphia (see Early Conventions for a list of all the convention during the first ten years). Here's a list of all cons of which there have been fifty or more. (Counting cons for 2018 not yet held, but scheduled as of November 2, 2018.)

Convention	Location	Started	Count	Notes
Worldcon	Earth	July 1939	76	not held during War years
Philcon	Philadelphia	Oct 1936		It's not quite clear how many there were as Philcon history is not well documented.
Eastercon	UK	Whitsun 1948	69	not held 1950-51
Westercon	Western North America	Sept 1948	71
Midwestcon	Cincinnati	1949	70	including "Midwestcon 0"
Australian Natcon	Australia	Mar 1952	57	not held 1957, 1959-65, nor 1967-68
Lunacon	New York City	May 1957	60	the 2018 Lunacon was cancelled, and the future of the con is uncertain
DSC	Old South	July 1963	56	Normally piggybacks on other cons.
Boskone	Boston	Sept 1965	55	There were five more Boskones in an early series in the 40s which had been forgotten by the time the modern Boskone began. There were two in 1966.
Minicon	Minneapolis	Jan 1968	53	There were two in both 1971 and 1974.
MileHiCon	Denver	Nov 1969	50	began as OctoCon

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Conrunning

This is a conrunning page.