Alpena demographics profile

StatisticAlpenaSouth DakotaNational
Population density (sq mi)1791191
Median age47.536.837.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)61%59%55%
Speak English90%94%79%
Speak Spanish10%2%13%
Alpena, SD has a population of 291 and is the 22,649th largest city in the United States. The population density is 179 per sq mi which is 1551% higher than the South Dakota average and 97% higher than the national average. The median age in Alpena is 48 which is approximately 29% higher than the South Dakota average of 37. In Alpena, 61% of the population over 15 years of age are married, 90% speak English and 10% speak Spanish. 60% of Alpena residents were born in South Dakota, 32% were born out of state, 0% were born outside of the United States and 8% were foreign born.

Did you know?

  • The population density in Alpena is 1551% higher than South Dakota.
  • The median age in Alpena is 29% higher than South Dakota.
  • In Alpena 98.97% of the population is Caucasian.
  • In Alpena 0.00% of the population is African American.
  • In Alpena 0.00% of the population is Asian.

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Alpena population breakdown by race

RaceAlpenaSouth DakotaNational
African American0.00%1.65%12.63%
American Indian0.00%8.72%0.82%
Native Hawaiian0.00%0.04%0.18%
Mixed race0.00%2.61%3.06%
Other race1.03%0.88%4.75%
In Alpena, 15.5% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Alpena age breakdown

Marital status

Age of children in married couples

Source: The Alpena, SD demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).