Berlin Township, St. Clair County, Michigan

Berlin Township is a civil township of St. Clair County in the U.S. state of Michigan. At the 2020 census, the township population was 3,115.

Geography

According to the United States Census Bureau, the township has a total area of , all land.

Demographics

At the census, The Allenton ZIP code 48002 serves all of Berlin Township. The community was founded in about 1844 by Kerkimer Smith, an innkeeper who ran a stage coach line to Detroit. It was at first called "Smith's Corners" and was given a station named "Smith" on the Almont branch of the Pere Marquette Railway. A post office with that name was established in April 1883 and was renamed Allenton in March 1910 for Darius and Jesse Allen, who were civic leaders in the community.

• Berville is situated 4.5 miles north of Armada at . Berville is an acceptable name for delivery in the 48002 ZIP code. Berville was named to contain the first syllable of the township. Speculators began purchasing land in 1835 and actual settlement began by 1840. A post office operated here from February 1862 until July 1962. It was also known locally as "Baker's Corners".
• Lesterville was a historic locale in the township at the junction of Belle River/Beardsley Road and Sperry Road at . It began as a mill settlement and was first called "Lester's Mills". Due to its location on the Belle River, it was also known as "Belle River", and was given a post office with that name in March 1867. The spelling was changed to "Belleriver" in January 1895 and was closed in January 1904.