Green Days is an annual community celebration held in Johnston, Iowa, at Terra Park.
 Green Days 2022 activities include Jammin’ in Johnston a Business Expo, the parade, carnival, live entertainment in the beverage garden,
Green Days 2022 Theme: Discovering the Undiscovered
Green Days is organized by the Johnston Chamber of Commerce.
Please come and join us for the celebration, June 16-19, 2022!