Editing St. Joseph County, Michigan (section)

===Major highways===
*{{jct|state=MI|US|12}} runs east–west across the lower portion of the county and passes White Pigeon and Sturgis.
*{{jct|country=USA|US|131}} runs north–south through the western portion of the county and passes Three Rivers, Constantine, and White Pigeon.
*{{jct|state=MI|US-Bus|131|dab1=Three Rivers}} runs north–south through eastern Three Rivers.
*{{jct|state=MI|M|60}} runs east-northeast through the upper portion of the county and passes Three Rivers, Parkville, Mendon, Leonidas.
*{{jct|state=MI|M|66}} enters the southeastern portion of the county from [[Star Mill, Indiana]], and runs north to an intersection with M-60, {{convert|2|mi|km|spell=in}} east of Mendon.
*{{jct|state=MI|M|86}} runs east–west through the center of the county, entering at Colon, passing Nella and Centreville to an intersection with M-60 at Three Rivers.
*{{jct|state=MI|M|103}} enters the southwestern tip of the county and runs north {{convert|2|mi|km|spell=in}} to intersection with US 12 near the western county line.
*{{jct|state=MI|M|216}} enters the northwestern portion of the county from [[Marcellus, Michigan|Marcellus]] and runs east to an intersection with US 131 {{convert|4|mi|spell=in}} north of Three Rivers.

Strictly speaking, the [[Indiana Toll Road]] does not enter St. Joseph County, but it has an interchanges with US 131 barely within Indiana. Although M-66 does not quite reach the Toll Road, the toll road interchange is in clear sight from M-66 before it becomes [[Indiana State Road 9]].