Jump to a detailed profile, search site with google or try advanced search. According to our research of Montana and other state lists, there were registered sex offenders living in Billings as of August 05, The ratio of all residents to sex offenders in Billings is to 1. No representation is made that the persons listed here are currently on the state's sex offenders registry. All names presented here were gathered at a past date. Some persons listed might no longer be registered sex offenders and others might have been added.