Browsing that page, a state like New Hapshire has one pork farm and one beef farm listed and that's it. These seem like they're more for locals and farm-to-table restaurants?
At my local supermarkets, even the nicer ones like Whole Foods and Trader Joe's, I don't ever recall seeing any of those logos on eggs, chicken, beef, anything at all. I'd love to know if I just missed them, though.