Von Thunen's Isolated State is a predictive model of how rural hinterlands organize agricultural production in relation to an urban center. Despite today's globalized food provisioning system, there are still some agricultural commodities that remain in US city hinterlands. The most prominent of these is milk. The spatial organization of dairying is therefore a topic in which von Thunen's notions of centrality are still pertinent. This paper will examine von Thunen and notions of centrality in the formulation of dairy policy in the US. His contribution has been very important to agricultural economists and agricultural geographers but less important to sociologists of agriculture, who see the spatial organization of food production around cities due as much to contingent, local political outcomes as to law-like notions of centrality.