Gem State Comic Con | Con Atlas | RMN

Wednesday, September 30, 2026 · New Jersey

Gem State Comic Con

Idaho's largest pop-culture and comic convention, a locally run three-day event across all Expo Idaho buildings with celebrity guests, vendors, artists, cosplay, gaming and panels.

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Con Atlas · Idaho

Comics and pop culture · Garden City, ID

Gem State Comic Con is a comic and pop culture convention in Garden City, Idaho, with verified dates from May 14 through May 16, 2027.

Confirmed
When
May 14–16, 2027
Mid-May weekend
Fri 3–9 pm, Sat 10 am–6 pm, Sun 10 am–5 pm
Where
Expo Idaho
5610 N Glenwood St.
Garden City, ID 83714 · Ada County
Directions
Badges
Buy badges
Organized by
Colossus Girl Entertainment
Convention producer
Since 2019
Official siteTicketsDirectionsAdd to calendar

What to expect

  • 352 vendors (2026)
  • Uses all Expo Idaho buildings plus outdoor space
  • celebrity guests
  • cosplay
  • locally run
  • anime
  • gaming

2026 Confirmed

May 15–17, 2026

Checked Mon, Sept 28, 2026 against the official source.

2027 Confirmed

May 14–16, 2027

Checked Mon, Sept 28, 2026 against the official source.

Guests

  • Sean Astin
  • Ray Park
  • Adam Baldwin
  • Jewel Staite
  • Sean Maher
  • Sylvester McCoy
  • Sophie Aldred
  • Phil LaMarr
  • Alexis Tipton
  • Amber Lee Connors

Programming

  • Celebrity panels
  • Autographs and photo ops
  • Cosplay
  • Gaming

Good to know

Age
Family-friendly

Plan your visit

Attendance
54,124 admissions (2026 record)

Nearby

Contact

Sources

Details checked against the con’s own pages on Mon, Sept 28, 2026.