what county is dayton pa in
Homefacts City Report. Dayton is located in Armstrong County, PA. The population is 452. There are 1 public schools in Dayton with an average Homefacts rating of B+. The total crime rate for Dayton is very low, and there are 4 registered sex offenders residing in the city. Unemployment in Dayton is high and the median home sales price is $0.