Apparently 5A South was ahead of the curve. You have a Richmond Region and a Tidewater Region. VHSL is now proposed that everybody else do the same
http://www.richmond.com/sports/high-school/article_3bffc531-41cf-5970-8a5f-fa37b6ad9a9e.html
http://www.richmond.com/sports/high-school/article_3bffc531-41cf-5970-8a5f-fa37b6ad9a9e.html