Johnson County Homepage

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.
2020 Johnson County Stakeholder Report

The Johnson County Extension and Outreach office is open to the public M-F, 8am-5pm.

We ask that you help keep our staff and patrons safe by please using hand sanitizer, sign-in upon arrival and please wear a face mask when entering the office space. We take serving Iowans seriously, which is why we are prioritizing the health and safety of our community and staff. If you have had any flu-like symptoms, fever, congestion or have traveled outside the county in recent days, please do not enter. Instead, call our office at 319-337-2145. Thank you for your efforts to keep everyone safe!  

Reasonable Accommodation Practices

Private Pesticide CIC Registration: 2020-2021 sessions have been completed. We will post the 2021-2022 schedule once available.

Commercial Pesticide CIC Registration: Spring 2021 sessions have been completed. Fall 2021 schedule coming soon.

IDALS Pesticide Applicator Testing 

2021 Johnson County 4-H & FFA Fair

4-H Newsletter - Events & Registrations - Club Financial Management

Johnson County Master Gardeners Hortline -  Become a Master Gardener 

Big Brothers Big Sisters of Johnson County

ServSafe: Certified Food Protection Manager course 

Ag Newsletter

Soil Testing Information

Derecho Storm Damage Resources   |   Drought Resources


Click here to subscribe to current Johnson County Extension information!

* Don't forget to click on the "More County News" button below for additional events and information.

County News

June 10, 2021

The training is targeted toward farmers, certified crop advisors, ag professionals and independent crop consultants. 
Pre-registration required by July 9th by calling 319-653-4811 or registering here:
Training will be held at the Southeast Research and Demonstration Farm in Crawfordsville, IA.

June 4, 2021

Iowa State Extension and Outreach field specialists are offering a workshop in Washington County for women to learn about the basics of tile drainage, including economic and water quality considerations. The workshop is free and includes materials to accompany presentations and a meal served at 5:30 PM. Please register by calling the Washington County Extension Office at (319) 653-4811.

April 30, 2021

With planting season underway, expect to encounter slow moving equipment

April 20, 2021

Learn more about how cover crops can be utilized as a forage source at three upcoming field days in Dubuque, Wapello and Iowa counties.

March 30, 2021

ServSafe offered June-September from 9AM-6PM at the Johnson County Extension office for foodservice managers and workers.


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Here for You. Now. Always.

As Iowans, our strength grows when we empower one another. Iowa State University Extension and Outreach delivers education and information based in research – for your reality. We are focusing on six initiatives for recovery – to build a strong Iowa.

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