Ada - location of Ohio Northern University - is a village in Hardin County with a population of a bit less than 6000.
Ada is by far the neatest/cleanest/ tidy community of all the places I have photographed,. Almost wished that I had worn a better pair of shoes and dress clothing!.
The CS Young building - above - dates from 1900. Well kept up and as fresh looking today as it must have been when new.