This publication provides historical information about states and counties of the United States. It is for sale by the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Road, Springfield, VA 22161; (703) 487-4650. Price $35 plus handling, refer to order number PB96-119060. It is also available in electronic form as text files for $35 plus handing, refer to order number PB96-500525.
Forstall, Richard L., Population of the States and Counties of the United States: 1790 to 1990, U.S. Bureau of the Census, Washington, DC, 1996.