The California Sustainable Winegrowing Alliance (CSWA) recently released the 2025 California Wine Community Sustainability Report, which finds that sustainability is being implemented at broad scale across the state, with approximately 70% of California wine grape acreage certified to a sustainability program and more than 90% of California wine produced in a certified sustainable winery.
Published every five years, the report draws on aggregated vineyard and winery performance data and provides an update on CSWA’s education, outreach, certification and partnership efforts. The latest findings document measurable progress since the 2020 report, including improvement in 65% of the vineyard sustainability criteria evaluated and 53% of the winery criteria.
“Sustainability has long been part of the heart of California wine, and this report shows how that commitment is translating into meaningful action across the state,” said Allison Jordan, CSWA executive director. “We are proud of the progress growers and vintners have made to conserve natural resources, strengthen their communities and build more resilient businesses, while continuing to look for ways to do even better.”
Sustainability Participation Continues to Grow
Participation in sustainability assessment has continued to expand across both vineyards and wineries.
Since 2021, growers farming 2,745 vineyards covering more than 350,000 acres have used the California Code of Sustainable Winegrowing to assess their operations. That represents a 19% increase in participating vineyards and a 34% increase in acreage.
During the same period, 282 wineries producing approximately 210 million cases annually have used the Code to assess their operations, representing a 23% increase in winery participation.
The report’s appendix includes aggregated data for the 144 vineyard and 105 winery best practices in the Code, which helps California winegrape growers and vintners evaluate their sustainability performance and identify practical opportunities for continued improvement.
Measurable Progress Across Vineyards and Wineries
As participation has grown, the data also show meaningful improvement in how sustainable practices are being implemented across vineyard and winery operations.
Vineyard sustainability performance improved in 65% of the evaluated criteria compared with the 2020 report. Highlights include:
- Soil health: 99% of growers allowed resident vegetation to grow in the vineyard, used cover crops and/or applied compost to encourage nutrient cycling and protect soil structure.
- Energy efficiency: 97% reduced energy use through water-pump improvements, one of the largest energy-saving opportunities in vineyard operations.
- Pest management: 85% used cultural practices to manage pests naturally and reduce the need for pesticides.
- Water efficiency: 83% used micro-irrigation systems that enable targeted irrigation and more efficient water management.
Winery sustainability performance improved in 53% of the evaluated criteria compared with the 2020 report. Highlights include:
- Sustainable business strategy: 98% integrated sustainability into their business strategy.
- Water efficiency: 97% measured and monitored water use to manage it responsibly.
- Energy efficiency: 96% conducted an energy audit of their winery operations within the past five years to identify savings, control costs and improve operational performance.
The report also demonstrates the ways growers and vintners are supporting employees, neighbors and local communities:
- Neighbors: 100% of growers provided neighbors with contact information and responded to community concerns.
- Contributions: 97% of vintners volunteered or made other contributions to enhance their local communities.
- Wildlife: 94% of growers allowed resident or native vegetation to grow near local waterways, helping protect water bodies and surrounding habitats.
- Employees: 90% of vintners encouraged employees to recommend ways to improve operational efficiency and sustainability.
Expanding Tools, Education and Industry Engagement
Supporting that progress is an expanding network of tools, education and outreach designed to help growers and vintners put sustainable practices into action and continue improving over time.
From 2021 through 2025, CSWA expanded its efforts to help vineyards and wineries document, measure and strengthen their sustainability performance. Key accomplishments included the launch of the California Vineyard and Winery Climate Action Toolkit and publication of the fifth edition of the California Code of Sustainable Winegrowing. To date, more than 19,300 participants have attended CSWA educational events.
CSWA also broadened access to California wine sustainability information through an updated Sustainable Winegrowing Ambassador Course, a redesigned CSWA website, a website highlighting California wine’s sustainability milestones and a consumer-facing certification website.
The report also reflects several important milestones, including CSWA’s 20th anniversary in 2023, the 15th anniversary of Certified California Sustainable Winegrowing and the 10th anniversary of the California Green Medal Sustainable Winegrowing Leadership Awards.
“These programmatic accomplishments and industry-wide implementation and certification of sustainable practices demonstrate meaningful progress toward CSWA’s vision of vibrant businesses, stronger communities and a healthier environment,” Jordan said. “They also underscore the California wine community’s leadership and resiliency in addressing today’s most pressing sustainability challenges.”
— Story contributed by the California Sustainable Winegrowing Alliance

Marking a decade since the launch of Certified California Sustainable Winegrowing and nearly two decades since the release of the 1st Edition California Code of Sustainable Winegrowing Workbook (the Code), the California Sustainable Winegrowing Alliance (CSWA) issued the 2020 Certified California Sustainable Winegrowing Annual Report and published the 4th Edition California Code of Sustainable Winegrowing containing over 200 best practices.

The California Green Medal winners have been announced for the Sixth annual Sustainable Winegrowing Leadership Awards. The California Green Medal recognizes the leadership of wineries and vineyards committed to sustainability and is presented by the California Sustainable Winegrowing Alliance, California Association of Winegrape Growers, Wine Institute, Lodi Winegrape Commission, Napa Valley Vintners, Sonoma County Winegrowers and Vineyard Team. Four Green Medals are presented in the following categories: Leader, Environment, Community and Business. The recipients of the Green Medal Awards will be honored at a ceremony at the California State Capitol in Sacramento in the coming months.
With wineries in Paso Robles, San Jose and Greenfield, family-owned and operated J. Lohr Vineyards & Wines embodies leadership in all three aspects of sustainability – environment, community and business; all of its vineyards and wineries are Certified California Sustainable. The winery has been instrumental in several groundbreaking water efficiency initiatives, using innovative technologies to increase irrigation efficiency and recycle process water. In J. Lohr’s Paso Robles winery, they reduced the amount of water needed to make one gallon of wine from 3.5 to 1.3 gallons. The winery has also invested heavily in energy-efficient technologies, with a 756 KW solar (photovoltaic) tracking system that supplies 65% of electrical needs in Paso Robles and a 920.7 KW flat mount system that covers nearly 100% of energy needs at its new winery in Greenfield. Owl boxes, located every 30 to 40 acres in all of its vineyards, provide gopher control; while songbird boxes are installed to attract native species for biodiversity. J. Lohr has carried out extensive habitat and riverbank restoration along 3,900 feet of the Napa River that borders its Carol’s Vineyard in St. Helena.
With a deep respect for the environment, Bonterra Organic Vineyards in Mendocino County has been farming organically for more than 30 years. Bonterra’s green roots run deep and are exemplified in the winery’s approach to defining, measuring and growing its sustainability impact, as well as examining ways to continue to innovate and lead sustainability efforts in the wine industry. What initially began as an exploration of how organic farming could bring enhanced vitality to vineyards and wine has in recent years evolved into a deeper project at Bonterra, with the aim of understanding how wine growing can produce resilient, biodiverse landscapes and positive climate impacts.


Now in the hands of the third generation, Pisoni Family’s holistic and inclusive approach to practicing sustainability in their vineyards and winery in the Santa Lucia Highlands began with their grandparents, Eddie & Jane Pisoni, who started the family farming legacy in 1952. Their ethos is that the best approach to having a successful sustainability program is to be inclusive, transparent and open to new ideas. “Leaders don’t dictate—they inspire.” Examples of their focus on efficiency include monitoring every drop of water applied to their vineyards, and recording annual water usage, winter rain fall, shoot tip growth, leaf angle and vine color. To conserve water, a pressure bomb tracks leaf water potential, soil moisture probes are placed at different soil depths, the Tule System measures evapotranspiration and distribution uniformity tests are regularly conducted.