|  Photo from Wikipedia | Hastings, MI 49058 Post Office Location: 209 West Mill Street; Hastings, MI Year Post Office built: Town(s) Served: Hastings Acceptable City Names: Hastings Not Acceptable City Names: Sectional Service Facility: Kalamazoo County(ies): Barry Info on Hastings: The City of Hastings is located in North-Central Barry County. This is home to aprox. 7,514 residents (2020 census). It is the county seat of Barry County. Hastings dates back to the 1830's. | 
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