I don't know about Washington, but in Oregon, you won't find dairy at a farmer's market unless it's pasteurized and in that case, you might as well buy it at a local grocery anyway. Farmers are not allowed to sell raw dairy away from the farm where it's produced. I believe there is an exception for raw cheese from a certified dairy, but not for milk.

We do see eggs and different meats regularly at the local farmers markets around here. (and honey and produce and flowers and jams and etc....)