Also, smoking is permitted in an area about 100 yards away from the main terminal building at Plattsburgh International Airport.
People will also be able to smoke inside their own vehicles on county property.
The law can be enforced by any local law-enforcement officer, including court officers who work in the County Government Center.
Violators could face a $500 fine.
The policy, which takes effect July 1, 2013, was approved by an 8-2 vote.
Legislators Mark Dame (R-Area 8, City and Town of Plattsburgh) and Sam Dyer (D-Area 3, Beekmantown) voted against the law.
Dame said he agrees that people should not smoke on county property but felt the law goes too far.
“I’m all in favor of keeping second-hand smoke away from people, but this is government intrusion,” said Dame, who quit smoking five years ago.
“You can’t use snuff. Come on, this is too much. Government is not here to take care of people’s personal health. We can put up a sign asking people not to smoke and give them a place away from everybody else to smoke, and that would work just as well.”
Dyer said he would rather see a policy than an actual law, and he believes it should cover all county properties.
“We spend a lot of money from the (national) tobacco settlement, and where do you think that money comes from, and now we are telling people they can’t smoke,” he said.
“You can’t have your cake and eat it too, but it was a good discussion, it’s over, and let’s move on.”
Email Joe LoTemplio: firstname.lastname@example.org