From ABA Site-tation:
People Who Need People (or Information About People) – ERsys.com
Chosen by the American Library Association as one of the best free reference sites of 2004, www.ersys.com compiles demographic information on over 2600 American communities. Choose a state from the home page; a list of cities for that state appears. The opening page for an available city shows population, state ranking of the community, and other general information such as county, United States representative, school district and average temperature.
A left navigation bar provides demographic statistics arranged by age, density, education, ethnicity, families, growth, income and skills. Each of the charts also includes comparable data for nearby metropolitan areas. Information is provided about the community’s school district with available links; surrounding school district data and links are given as well. Other information given for individual communities includes media outlets (e.g., radio stations), weather information, travel distances, and a plant hardiness index. Bookmark this site if you need a quick reference for population data and general information on communities within the U.S.