Good newspapers and magazines will often cite statistics and indicate their source, which you can then directly consult. To find articles with statistics, I recommend including the following keyword string in your search: statistics or data or number or market (for searches relating to products).
Example: cosmetics and (minorities or African American or black or latin* or hispanic) AND (statistics or data or number or market*)
For the more intrepid, the sources below provide potentially useful statistics and data sets.
Bureau of Justice Statistics. Provides federal statistics about crime. Has links to FBI Uniform Crime Reports and Sourcebook of Criminal Justice Statistics.
NYCdata. Wide-ranging statistical and factual information about New York City from Baruch's Weissman Center for International Business
Statistical Abstract of the United States (Proquest). Federal collection of data on social and economic conditions in the U.S., current year and historical.