Welcome to Alpena County ...Time Zone: Alpena County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time. The community of Alpena is the Seat for Alpena County. Alpena County was founded ? and was created by taking area from Cheboygan County. From the Census Estimates for 2019, <1> Alpena had a population of 28,405 people. This is a decrease of 3.74% since the last Census (which gave a population of 29,510 people in 2010). At the time of the 2010 Census, Alpena represented 0.3% of the total population of Michigan. Websites of Interest ...
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