Alpena is a city located in Michigan. With a 2020 population of 9,789, it is the 93rd largest city in Michigan and the 3144th largest city in the United States. Alpena is currently declining at a rate of -0.88% annually and its population has decreased by -6.62% since the most recent census, which recorded a population of 10,483 in 2010. Alpena reached it's highest population of 14,682 in 1960. Spanning over 9 miles, Alpena has a population density of 1,198 people per square mile.
The average household income in Alpena is $49,890 with a poverty rate of 21.47%. The median rental costs in recent years comes to $591 per month, and the median house value is $76,200. The median age in Alpena is 42.2 years, 38.8 years for males, and 44.9 years for females. For every 100 females there are 90.8 males.