ICON 44 (2019): Unpacking Non-Binary Reality.
Dates: November 1-3, 2019.
Location: the Marriott, Cedar Rapids, Iowa.
Guests of Honor: Pat Murphy (author), Mystie Hollaman (fan), Misty Palek (artist), Shawn Palek (artist), Kat Pepmiller (costumer/cosplay Artist)

ICON 43 (2018): Eruption.
Dates: October 5 - 7, 2018.
Location: the Marriott, Cedar Rapids, Iowa.
Guests of Honor: Mike Mullin (author), Daniel Mohr (artist), Mike Miller (fan), Wolfie B. Bad (actor), Joe and Gay Haldeman (founders).

Theme: Hitchhiker's Guide to ICON 42
Dates: September 29 - October 1, 2017
Location: the Marriott, Cedar Rapids, Iowa
Guests of Honor: Wesley Chu (author), H. Russ Brown (artist), Sheril Harper (fan), Jim C. Hines (toastmaster), Joe and Gay Haldeman (ICON founders)