As walkable neighborhoods have grown in popularity, the supply of these neighborhoods has not kept up with the demand. However, the supply could increase through the use of planning tools related to zoning, land use, and urban form. This paper seeks to address this research gap by applying descriptive, factor, cluster, and spatial regression analysis to data from six U.S. cities. As expected, single-family residential zoning (especially when isolated from other zoning categories) and low-density building characteristics were inversely related to walkable access. The paper concludes with an argument that the zoning types, land uses, and urban-form characteristics that were significantly associated with walkability should be extended to address the undersupply of walkable neighborhoods.