Click the Logo below to visit the National Envirothon Webpage!

Message from CDI Program Manager Carlee Sabus

We are so proud of the many young Iowa scholars who participated in the 2024 CDI Envirothon – and congratulations to our top winning team, repeating as Iowa Envirothon champions for the second year in a row: Decorah Nerd Republic, from Decorah, Iowa. The team will go on to compete in the international competition, July 28-August 3rd, at Hobart and William Smith College in Geneva, New York. Good luck!

Registration for 2025 Iowa Envirothon is pending!

Curious about the Iowa Envirothon state contest?

Learn from the Decorah Nerd Republic team advisors on why students are interested in Envirothon!

Hear from Marshalltown’s team advisor and student!

If you have any questions or concerns, please contact me: Thank you!

Sample Tests

Sample Tests Answer Keys

2024 Iowa Envirothon Study Guide

2024 Iowa Envirothon Rules and Regulations

NCF Rules and Regulations

2024 National Envirothon Competition