Organic production systems strive to achieve agro-ecosystems that are ecologically, socially, and economically sustainable. Organic farming emphasizes a greater cooperation with nature without reliance on synthetic inputs.

All California organic producers register in their principal county of operation. There are 23 registered organic producers in Marin County farming 810 acres, producing a total gross value of 3.3 million dollars.

Organic commodities produced in Marin County include: apples, beans, berries, broccoli, cabbage, carrots, chard, cucumbers, cut flowers, dairy products, garlic, herbs, leaf lettuce, lemons, milk, mixed salad greens, olives, onions, pears, potatoes, pumpkins, silage, spinach, squash, tomatoes, turnips, vegetable starts, and watercress.