We subscribe to a number of databases that you can use to analyze a given population. Data is available down to the local level for the US.
If you need to find:
Population Data: Use Simply Analytics (US), Proquest Statistical Abstract of the US, Proquest Statistical Abstracts of the World, and World Bank Open Data to get population totals, birth and death rates, statistics on marriage and divorce, and more.
Employment, Income, and Poverty levels: Use American Factfinder, Simply Analytics (US), and World Bank Open Data to get information on employment rates and occupations, income, numbers of people on food stamps, and more.
Health: Use Proquest Statistical Abstract of the US, Simply Analytics (US), UNdata, and World Bank Open Data, for information on insurance enrollment, rates of disease, spending on healthcare, child immunization, and more.
Other useful links: