I believe most of the libraries are operated by the county. Most of thepubliclibaries I've been to are part of the Washoe County Library system, and I've seen no indication that they were part of a school. However, that doesn't mean there might not be some library out there that I'm unaware of which belongs to a school or university that is located off campus.
All of themthat Ihave been to areposted with "No guns allowed per NRS 202.3673" which makes them off limits to concealed carry, but I think technically not off limits to open carry. If they were considered to be part of the education system, they would not need to post the 202.3673 signage.
While open carry would be legal per my understanding of state law (since 202.3673 only applies to concealed carry, and preemption prohibits local governments such as the county from regulating firearms), the library system in Washoe County is currently maintaining an illegal regulation which if enforced would ban anyone from the library system for three months if they possess a "weapon." you can find them at
http:// libwww. washoecounty.us/mod.php?mod=userpage&menu=120604&page_id=1 96 (remove the spaces and paste into browser... the forum wants to change the link for some reason)
My local branch here in Las Vegas has a sign stating no weapons with a crossed out pistol and subject to prosecution. I just emailed the library system to ask what the policy is. I did notice this last week that since the main door was blocked they were routing folks to the side door. The side door is not posted. So they are not meeting the law on posting. It is a side door that is always open to the public as well.