National Institute of Mental Health Statistics Statistics currently available on the prevalence, treatment, and costs of mental disorders for the population of the United States, in addition to information about possible consequences of mental illnesses, such as suicide and disability.
U.S. Bureau of Justice Statistics - Statistical information on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government.
Census Bureau Offers population, housing, economic, trends, and geographic data.
SAMHSA's Office of Applied Statistics Collects the latest national data on alcohol, tobacco, marijuana, and other drug abuse including data on drug related emergency department episodes, medical examiner cases, and about the nation's substance abuse treatment system.
HUD User Provides data sets generated by the HUD Office of Policy Development and Research. Efforts include the American Housing Survey, HUD median family income limits, and microdata from research initiatives such as housing discrimination, the HUD-insured multifamily housing stock, and the public housing population.