The Division of Building and Housing of the Department of Commerce at Washington, D.C., maintains a current list of zoned municipalities and of zoning enabling acts passed by state legislatures. The division is always glad to answer inquiries in its field of work......
[Note. - Zoning ordinances: Zoning ordinances were in operation in 981 cities, towns, and villages throughout the United States in 1930. This represented more than 46,000,000 people. Of the 48 states, 47 and the District of Columbia have granted zoning authority to municipalities. In the state of Washington, cities of the first class are permitted zoning regulations through the home-rule provisions of the constitution. Information on zoning progress may be obtained from the Division of Building and Housing, U.S. Dept. of Commerce.]