Walk Score is a method for calculating a rating (from zero to 100) for a given address, based on the walking distance from that address to a variety of key amenities that a typical person needs on an average day. Walk Score was originally conceived to help individuals find apartments to rent, in what the founders of the metric deemed “walkable” neighborhoods. But rather than apply the walkable label at will, they created a method to measure each address, enabling users to compare the “walkability” of one address to another.