|  Photo from Digital-Topo-Maps.com | South Haven, MI 49090 Post Office Location: 336 Broadway Street; South Haven, MI Year Post Office built: Town(s) Served: South Haven Acceptable City Names: South Haven Not Acceptable City Names: Sectional Service Facility: Kalamazoo (Central) County(ies): Allegan, Van Buren Info on South Haven: The City of South Haven is in Northwestern Van Buren County. It is on the shores of Lake Michigan. The lighthouse in town, built in 1903, is a tourist draw, along with the downtown area. South Haven was founded in 1869. | 
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