hutchinson is a village located in westmoreland county, pennsylvania, and is part of sewickley township, pennsylvania. as of the 2000 census, hutchinson had 99 single family homes, and a total population of 322. although only about the size of a small subdivision, hutchinson has its own post office and zip code: 15640. hutchinson was built as a coal mining town in 1924, and is geographically located above the hutchinson mine.