Apparently Montana has released a map of all gun owners, and several other states (like Idaho, Utah, Wyoming, Oklahoma and Texas) are following suit shortly.
http://www.shtfplan.com/headline-news/report-montana-releases-map-of-all-gun-owners_11112013
http://www.shtfplan.com/headline-news/report-montana-releases-map-of-all-gun-owners_11112013