2019 Iowa Tribal Powwow Rate This Event The 34th Annual Iowa Tribal Powwow will be held on June 14-16, 2019 at the Bah-Kho-Je Powwow Grounds in Perkins, Oklahoma. The Iowa Tribe of Oklahoma hosts its annual Iowa Tribal Powwow each Father's Day Weekend, inviting the everyone to attend a weekend full of events [read more]