The availability and even the legality of raw milk varies from state to state, country to country. For the most part, raw milk is sold either directly by dairy farmers or through organizations based around dairy farmers, such as the Weston A. Price Foundation.
The Weston A. Price Foundation's website and its affiliated website, RealMilk.com, are good places to start looking for a source of raw milk in a desired locality, with the added benefit of some quality screening. Some consumers of raw milk simply locate a nearby dairy farmer and respectfully inquire about purchasing fresh, raw milk directly from him, as well. A total of 28 of the 50 states allow for the sale of raw, unpasteurized milk.