Graton is an unincorporated town and census-designated place in west Sonoma County, California, United States. The population was 1,707 at the 2010 census. Graton's ZIP code is 95444. The town also has a culinary reputation attributed to two restaurants in the area.The town of Graton is roughly 20 miles from the California coastline. Graton's agriculture was historically concentrated on apple farming, but like most of rural Sonoma county it now focuses on wine production.