Bureau of Justice Statistics - click on View By Topic and then Victims under publications tab -- also, see Intimate Partner Violence page
Domestic Violence and Sexual Assault Data Resource Center - background information on how data is collected what data is collected by the states
Network Against Domestic Violence - does not collect service statistics, but does compile a list of homicide statistics based on information gathered from local newspapers, the Internet and the State Police.
National Domestic Violence Hotline -- summaries of polling statistics
Data Sets on & Related to Violence Against Women - "This list was developed by the National Resource Center on Domestic Violence in collaboration the the National Sexual Violence Resource Center to serve as a resource for advocates and others concerned about safety and justice for women and their children"
Sourcebook of Criminal Justice Statistics - brings together statistics from a wide variety of sources