Alpena /ælˈpiːnə/ is a city in the U.S. state of Michigan and the county seat of Alpena County. It is considered to be part of northern Michigan. The Thunder Bay National Marine Sanctuary is located in the city. The population was 10,483 at the 2010 census. The population swells with many visitors in the summer.
As of the census of 2010, there were 10,483 people, 4,734 households, and 2,565 families residing in the city. The population density was 1,227.5 inhabitants per square mile (473.9/km). There were 5,278 housing units at an average density of 618.0 per square mile (238.6/km). The racial makeup of the city was 96.8% White, 0.5% African American, 0.4% Native American, 0.7% Asian, 0.1% Pacific Islander, 0.1% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 1.0% of the population.
There were 4,734 households of which 24.8% had children under the age of 18 living with them, 38.3% were married couples living together, 12.2% had a female householder with no husband present, 3.6% had a male householder with no wife present, and 45.8% were non-families. 39.4% of all households were made up of individuals and 17.2% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.84.
The median age in the city was 42.5 years. 20.7% of residents were under the age of 18; 9.4% were between the ages of 18 and 24; 22.7% were from 25 to 44; 27.9% were from 45 to 64; and 19.4% were 65 years of age or older. The gender makeup of the city was 47.7% male and 52.3% female.
As of the census of 2000, there were 11,304 people, 4,874 households, and 2,865 families residing in the city. The population density was 1,348.9 per square mile (520.8/km). There were 5,200 housing units at an average density of 620.5 per square mile (239.6/km). The racial makeup of the city was 97.66% White, 0.42% African American, 0.43% Native American, 0.48% Asian, 0.01% Pacific Islander, 0.09% from other races, and 0.91% from two or more races. Hispanic or Latino of any race were 0.59% of the population.
There were 4,874 households out of which 26.9% had children under the age of 18 living with them, 44.1% were married couples living together, 11.5% had a female householder with no husband present, and 41.2% were non-families. 35.9% of all households were made up of individuals and 17.9% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.93.
In the city, the population was spread out with 23.0% under the age of 18, 9.2% from 18 to 24, 26.5% from 25 to 44, 21.7% from 45 to 64, and 19.6% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 88.9 males. For every 100 females age 18 and over, there were 85.4 males.
The median income for a household in the city was $30,353, and the median income for a family was $40,056. Males had a median income of $34,534 versus $21,951 for females. The per capita income for the city was $17,476. About 10.4% of families and 13.5% of the population were below the poverty line, including 16.5% of those under age 18 and 6.6% of those age 65 or over.
Alpena Michigan neighborhoods include: Channel Roads, Fox Farm, Helping Hands, Long Lake South, Rivers Edge, Wayne Road