While concerted research efforts have been put into the widespread problem of IPV, descriptors of IPV at the State level have rarely been investigated. The current study drew on 7 years of Idaho’s National Incident Based Reporting System (NIBRS) data to explore the characteristics of IPV victims, offenders, their relationships, and the injuries sustained by the victims. Idaho’s NIBRS is a collection of crime incident data from 105 local and State law enforcement agencies, 61 police departments, 43 Sheriff's Offices, and the Idaho State Police. The current analysis concentrated on the 36,693 incident reports involving 40,977 IPV offenses; demographic characteristics were collected for the victim, offender, offense, and arrest. Results of statistical analyses indicated findings similar to the best national victimization surveys: victims were generally female, young, and a member of a minority group. Offenders were usually males who were slightly older than their victims. Male to female IPV had more serious outcomes and consequences than female to male IPV. The findings provide support for the use of NIBRS data to explore IPV in other States. Figures, notes, references