Chartered in 1912, the Marin Municipal Water District (MMWD) is celebrating its centennial as the first municipal water district in California. Today, MMWD serves 185,000 people in a 147-square-mile area of south and central Marin County. Our mission is to manage our natural resources in a sustainable manner and to provide our customers with reliable, high quality water at a reasonable price. Visit us at marinwater.org.