Johnson County Homepage

A world of 4-H with you in it. Join 4-H!

Let your adventure begin! Explore your interests.

Learn it. Grow it. Teach it. Become a Master Gardener in Johnson County.

Small family farms make up 80% of all farms in Iowa.

Iowa State University Extension and Outreach: Johnson County

Johnson County welcomes you to our website!  We are here to serve you through various information and programs.  Take some time to explore our site and learn how ISU Extension programs can "Help You Become Your Best.

County News

March 23, 2016

Do you have an interest in gardening? Would you like to volunteer and help with various gardening related activities throughout Johnson County? Learn how to become a Johnson County Master Gardener by clicking on the title of this article!

February 25, 2016

A comprehensive educational program for the nonprofit sector.

June 14, 2016

July 10th, 7am-12pm on the Johnson County Fairgrounds

May 19, 2016

Johnson County Extension Summer Day Camps

April 25, 2016

The Iowa City Noon Rotary Club presented the McNutt 4-H Rotary Leadership Award to two outstanding Johnson County 4-H youth on April 21.

Featured "At Work for Iowa" article

Follow #ISU99 on social media and join a scavenger hunt for a box of Iowa State Cyclone items. Watch for clues every day until Cyclone football season begins in September: 99 prize packages in 99 counties in 99 days!

Iowa State University Extension and Outreach News

June 23, 2016 10:04 AM

Youth can register now for the sixth annual Bratney Companies 4-H Robotics Challenge at the 2016 Iowa State Fair. The events are Aug. 14...

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