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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
jo@listserv.ksu.eduMap to our office

Kansas State University is committed to making its services, activities and programs accessible to all participants. If you have special requirements due to a physical, vision, or hearing disability, contact Johnson County K-State Research and Extension, 913-715-7000.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

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

Current Job Openings:

 Program Coordinator, Family & Consumer Sciences: Part-Time

Current News


  Knowledge For Life Newsletter:

 November 2019

Cover of 2018 Annual Report

 2018 Annual Report

 Scooping soil into a plastic bag for a soil sample


Free Soil Testing for Johnson County Residents

How to take a soil test

Why take a soil test

AG Soil Testing

Radon Kit




Radon Kits: Kits are available year-round


Radon in Johnson County, Kansas

Testing for Radon

Buy your Do-It-Yourself radon test kit here