Just added to the 2018 calendar:

Mississippi Comic Con 2018
mississippicomiccon.com
June 23 - 24 2018
Jackson, Mississippi
USA

Central Florida Costumer's Guild Time Traveler's Tea
facebook.com/events/557756471254765
August 25 2018
Mount Dora, Florida
USA

Astor Geek Fest 2018
facebook.com/events/580123542352304
August 25 2018
Astor, Florida
USA

Knoxville Steampunk Riverboat Cruise
facebook.com/events/1166962723435036
October 5 2018
Knoxville, Tennessee
USA

Gulf Coast Fan Fest 2018
gulfcoastfanfest.com
October 13 - 14 2018
Biloxi, Mississippi
USA

Renninger's Steampunk Industrial Show
facebook.com/events/450369255426452
October 20 - 21 2018
Mount Dora, Florida
USA

Interdimensional Worlds Faire
facebook.com/events/1493145934145900
October 27 2018
Mobile, Alabama
USA

The Clockwork Ball: A Steampunk Masquerade
facebook.com/events/231916370915953
December 31 2018 
Saxapahaw, North Carolina
USA