Someone recently pointed me to this site - walkscore.com - and it's pretty cool. Just type in your address and it tells you how "walkable" you are. I leave the math figuring up to the WalkScore people, but it looks like it's some combo of how close you are to restaurants, grocery stores, hardware stores, etc. Not everything is up-to-date, like they left off my fave coffee shop Crest Cafe. But maybe they're just one step ahead of me and know Crest is closed for the next couple weeks. Ha. Of course they're one step ahead.
My design studio scored a lovely 77 on a scale of 1 to 100. 100 being most walkable. My parents in rural Michigan are a whopping 8! I guess that's why my dad's the one with the pick-up truck and my only wheels are my bike.
Happy walking!