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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

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

Map to our office

Current News

Knowledge For Life Newsletter:

June 2019: Mosquito Protection, Pollinator Prairie, Backyard Garden,

Healing from Grief, 4-H Auction, Board Leadership Series 


Cover of 2018 Annual Report 2018 Annual Report


Phytophythora_ramorum Sudden Oak Death Found in Kansas 

Rhododendrons purchased at Walmart this spring 
must be destroyed. Learn what to do.

Picture of bat Bat Informational Sheet


Ash tree showing symptoms of Emerald Ash Borer


Symptoms of Emerald Ash Borer
in Kansas City Ash Trees


 Scooping soil into a plastic bag for a soil sample 


Radon Kit

Radon Kits: Kits are available year-round



Office Hours:

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

Map 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.