Chapin is an unincorporated community in Teton County, in the U.S. state of Idaho.
[1] A post office called Chapin was established in 1896, and remained in operation until 1912.
[2] According to tradition, the community was named after one Mr. Chapin, a pioneer citizen.
[3] Chapin's population was 125 in 1909.
This Teton County, Idaho state location article is a stub.