Despite its small population, it is by far the largest city in sparsely-populated Northeast Michigan lower peninsula, serving as its commercial and cultural hub. It is considered to be one of the two anchor cities of Northern Michigan, along with Traverse City. The Alpena Regional Medical Center is a federally-designated rural regional medical referral center, and is the largest employer in the city.
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/sq mi (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 County Regional Airport (IATA: APN, ICAO: KAPN, FAA LID: APN) is the northeast lower peninsula of Michigan's main commercial airport and handles daily Northwest Airlink flights to Detroit and Sault Ste. Marie operated by Mesaba Airlines. It is a public-use airport located in Wilson Township, Michigan six miles (10 km) west of the central business district of Alpena. The airfield is co-utilized by the Michigan Air National Guard Combat Readiness Training Center.
Alpena is situated along the Lake State Railway, formerly the Detroit and Mackinac Railway (D&M). Earlier railroads that served Alpena were built and owned by the Alger Smith and Co. logging company: (1) the Detroit, Bay City and Alpena Railroad which entered Alpena from the south around 1886; and (2) the Alpena and Northern Railroad.