Marin County

Just across the Golden Gate bridge from San Francisco, Marin County is the foodie capital of the US:

The Bay Area is setting an example for the rest of the country with many of its ranchers and farmers already off the commodity market grid. In 2004, Marin and Sonoma County started the country’s first certification program for grass-fed beef. (Marin County is also the only U.S. county to have 100 percent of their produce farms certified organic.)

This article is an interesting overview of the "healthy beef" industry that is thriving in Northern California: small farmers and ranchers who have chosen sustainable and just methods of production.