"Demography is the study of variables such as age, ethnicity, gender, sexuality, religion, education, social class, and political preference in different population segments."
Yun, H. J. (2008). Demography. In Holtz-Bacha, C., and Kaid, L. L. (Eds.), Encyclopedia of Political Communication (pp. 179-180). Los Angeles: SAGE Publications, Inc.
FBI's Criminal Justice Information Services (CJIS) includes:
Bureau of Justice Statistics (BJS)
​Pennsylvania Uniform Crime Reporting System
Pennsylvania Commission on Crime and Delinquency’s Statistical Analysis Center (SAC)