From a certain point of view a small town should be more walkable than a big city but that all comes down to planning. I've lived in several small towns over the years. Let's compare 2 for example.

Isolated oil industry town of 990 founded in the 1950s. You cannot function without a car. Only a dozen or so businesses or places to go. Everything is far apart, literally ZERO sidewalks. Two high speed highways bisect the town, obviously no sidewalks means no crosswalks either.

Historic 1800s ranching town turned into a resort destination, population 8,000. I never had a car living here and never wanted one (I'd bum a ride to go hiking). Several hundred businesses or places to go, but sidewalks everywhere. Traffic had recently been calmed as the mistakes of the previous decades of car centered design became obvious to the town. The highway through town had a lower speed limit and several safe crossings. The streets were originally planned out before cars and euclidian zoning were a thing. Was very pleasant to be a pedestrian.

In theory the town of 990 could have been even more walkable because combined together all the towns businesses and destinations would have been maybe 10 acres. But instead they were spread out in different unconnected parcels which had dangerous highways between.