Most of the bombs were found in a detached garage at the home in Isle of Wight County.
A Carson City man was arrested and faces charges related to allegedly building explosive devices.
The Washoe County Sheriff's Office says it is investigating a suspicious package that was found at a home on Olinghouse Road in Wadsworth late Sunday night.
The Florida man accused of sending pipe bombs to prominent critics of President Donald Trump has pleaded not guilty to charges carrying a potential mandatory penalty of life in prison.
Federal prosecutors say in a new letter that pipe bomb suspect Cesar Sayoc searched for addresses of his targets online and had photos of many of them on his cellphone.
Reno Police say they are currently at a home in north Reno that may have an improvised explosive device inside.