This Bureau of Justice Statistics report presents national and state-level data on the number of inmate deaths that occurred in local jails and state prisons, the distribution of deaths across jails, and the aggregate count of deaths in federal prisons. The report presents annual counts and 13-year trends between 2000 and 2012 in deaths in custody. It provides mortality rates per 100,000 inmates in custody in jail or prison; details cause of death, including deaths attributed to illness, homicide, suicide, intoxication, and accidental injury; describes decedents' characteristics, including age, sex, race or Hispanic origin, legal status, and time served; and specifies the state where the deaths occurred. Data are from the Bureau of Justice Statistics' Deaths in Custody Reporting Program, initiated in 2000 under the Death in Custody Reporting Act of 2000 (P.L. 106-297).