UC Cooperative Extension Sonoma County

Jacob Ranch

Welcome

In Sonoma County, the UC Cooperative Extension academic staff is at the forefront of change, working to preserve agriculture, helping communities shape wise public policy, and strengthening community development and leadership in our youth and adults. 

Cooperative Extension started in 1914 to help farmers, homemakers, and youth use the latest university research to improve their lives. At first geared towards strengthening rural areas, Cooperative Extension became integral to urban and suburban communities as well. A century later, Cooperative Extension continues to provide a vital link between public universities and communities.

Providing a vital link between public universities and communities.

New to Sonoma County Agriculture? 

Bringing UC Research to Our Community

Explore our science-based programs and expertise that support agriculture, natural resources, youth development, and healthy living across Sonoma County.

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4-H Youth Development

4-H helps young people build leadership, confidence, and life skills through hands-on learning in agriculture, science, and community service.

Learn about 4-H

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Forestry

Forestry focuses on helping forests stay healthy, resilient, and safe by providing resources, information and research.

Learn about Forestry

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Master Gardeners

Master Gardeners share research-based gardening advice to help residents create healthy, sustainable gardens and landscapes.

Get Gardening Help

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Dairy

The dairy program provides research, resources, and exposure to keep Sonoma County dairies safe and healthy.

Explore more about the Dairy Program

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Specialty Crops

The Specialty Crops program addresses the sustainability production needs for over 200 crops.

Learn about Specialty Crops

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Climate Smart Agriculture

The Climate Smart Agriculture programs provides assistance with project needs and guidance for local farmers and ranchers.

Learn about Climate Smart Agriculture

Contribute for a Better Future

Upcoming Events

peach tree
Event Date
January 6, 2026

UCCE Peach Webinar

This is a free educational webinar! We will cover peach tree basics, rootstocks & scions, site selection, pruning & thinning, sunburn & frost protection, nutrient & water management, …
Mandarins
Event Date
January 14, 2026

UCCE Citrus & Avocado Webinar

This is a free educational webinar! We will cover key considerations for commercial production, scaling up, sustainable management practices, & economic viability. with Ben Faber (UCCE…
apples
Event Date
January 28, 2026

UCCE Apple Webinar

1:00-1:30 Fungal Disease Identification & Organic Managementwith Akif Eskalen, PhD (UCCE) 1:30-2:00 Fire Blight Identification & Organic Managementwith Jim Adaskaveg, PhD (UC Riverside)…

Office Locations

UC Cooperative Extension Sonoma County

133 Aviation Blvd., Suite 109
Santa Rosa, CA 95403
United States

Mission Statement

UC Cooperative Extension’s mission supports research and education in all of California’s counties. As part of a statewide network, our local team provides research-based knowledge and practical solutions to meet the needs of our North Bay communities, including Marin, Napa, and Sonoma counties.