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Johnson County

Research-based Information You Can Trust — Localized for your needs

Johnson County
11811 S. Sunset Drive
Suite 1500
Olathe, KS 66061

Office Hours:

Monday - Friday,
8:30 a.m. - 5 p.m.

(913) 715-7000
(913) 715-7005 fax

Map to our office

K-State Research and Extension is committed to making its services, activities and programs accessible to all participants. Reasonable accommodations for persons with disabilities may be requested by contacting Johnson County Extension at (913)715-7000. Notify staff of accommodation needs as early as possible.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

K-State Research and Extension is an equal opportunity provider and employer.

Johnson County Fair

July 30 to August 5, 2023
Gardner, Kansas

For more information about the fair visit www.jocokansasfair.com.

4-H Conference Judging Sign-ups are available HERE and will close on July 30 at 11:59 p.m.
(Click on the tab of the department you need a time slot for and select one of the listed times. If you are using a mobile device make ABSOLUTE sure that you have correctly selected the department from the options and press the GO button. Pay close attention to the DATE of judging for each department, as they are spread over a few different dates.)

An electronic version of the 2023 Johnson County Fair 4-H Book is available HERE

To view score cards and other information from State 4-H click Judging Standards. Not all departments at the fair use score cards but they are still a good guideline when working on fair projects.

Fair Clean Up

Food Stand

Project Auction / Livestock Auction

Barnyard Olympics

Project Resources

Astronomy Project


    • Cloverbud Judging Sign Up

Energy Management

Fashion Revue

Foods Judging




Public Presentations 

    • Public Presentations Schedule (Click on the tab that lists the class you need a time slot for and select one of the listed times.)

Rocket Judging

STEM - Ag Mechanics & Architectural Block Construction

Technology & Computers

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