This is a significant part of what attracted us to Fort Collins, Colorado. It's not as small as you're describing, but much of the city is walkable, including t

This is a significant part of what attracted us to Fort Collins, Colorado. It's not as small as you're describing, but much of the city is walkable, including the downtown area and dozens of surrounding blocks, along with multiple paved bike paths, etc. It feels more like a city built for humans than most of its size in the states.