In Iowa, only the Republican and Democratic Parties are qualified parties, so all other parties must place their presidential nominee on the ballot by petition. Seven such petitions succeeded. They required 1,500 signatures.
The seven are: Don Blankenship, Rocky De La Fuente, Howie Hawkins, Jo Jorgensen, Ricki Sue King, Brock Pierce, and Kanye West. Ricki Sue King lives in Windsor Heights, Iowa, and her ballot label is “Genealogy Know Your Family History.”
Here is a link to the Iowa Secretary of State’s web page, listing the candidates for all federal and state office.