Main Page | See live article | Alphabetical index Middleton is a village in Fulton Township, at the southern end of Gratiot County, Michigan, USA. The Zip code is 48856. It is located just north of Fulton High School on M-57. External Link http://multimag.com/city/mi/middleton/ This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.