Idaho is an unincorporated rural hamlet in Pike County, in the U.S. state of Ohio. [1]
A post office was established in 1870, and remained in operation until 1964, at Idaho. An unmanned postal facility remains there, the only form of business or service at Idaho. [2] The community was named after the Idaho Territory. [3]
39°05′17″N 83°08′31″W / 39.08806°N 83.14194°W