Some locals may not know that although the land for Middleton was parceled out in 1863, an overflowing Boise River cut a new channel in 1872 and isolated the town on an island. The town ultimately moved to a new location in the 1880s and was incorporated as a city in 1910. Its certificate, however, wasn't issued until 1971.
Technically, Middleton is a city, and is located in Canyon County
