It's interesting to observe that France has so many biodynamic operations. However, many of them are certified both by Demeter and Biodyvin so the 10,000+ number is dubious.
Still, I had not know there were so many Spanish biodynamic producers and I look forward to getting acquainted with more and more of them.
Italy has a low number (not shown here), due to its more stringent requirements. For example, using mechanical harvesting is forbidden under the Italian Demeter rules.
Acres in the US will increase dramatically when Heitz Cellars converts, which will add 550 acres to the US total. Heitz is on track to become the largest biodynamic vineyard owner in the U.S.