505 North Columbia River Highway
St Helens, OR 97051
United States

Office hours

Monday - Friday: 8:00 am-5:00 pm
Currently open!


Office fax

Columbia County Extension


The Extension Service is here to serve the residents of Columbia County, providing knowledge from universities nationwide. We provide research-based information to families, youths, schools, agricultural producers, home gardeners, foresters and governments.

Our office offers a variety of programs, which include 4-H Youth Development, Home Gardening, Agriculture and Small Farms, Family and Community Health, Forestry & Natural Resources and Master Gardeners.

We publish two newsletters from our office:

  • Country Living (gardening and farming topics)
  • Tall Timber Topics (forestry/wood lots)

If you would like to receive these newsletters by email or mail, please give the office a call.

We offer classes, workshops, opportunities for youth and adult volunteer activities:

Volunteer as a Master Gardener, Master Woodland Manager, or with the 4-H youth program

Nutrition education events

Home Garden educational events

Upcoming Events

March 2019

Mar 12
Mar 23

Basic Woodland Management Shortcourse

6:00 pm - 8:30 pm St Helens, OR
Mar 19
Mar 20

June 2019

Jun 1

Forests for Engaged Learning

8:30 am - 4:00 pm Eugene, OR

July 2019

Jul 30
Aug 3

4-H Wildlife Stewards Summer Camp

9:30 am - 12:00 pm Salem, OR
Ask an Expert

Have a Question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask Us a Question