There is one unique ZIP code in Alpena, South Dakota and it is 57312. Area code: 605.
1
ZIP codes
130.28
sq mi land
0.60
sq mi water
605
area code
Alpena, SD ZIP code map
About Alpena, SD
Alpena is a small city located in Jerauld County, South Dakota. It embodies the charm and tranquility of rural America, making it a peaceful place for both residents and visitors. With its rich agricultural roots, Alpena reflects the lifestyle typical of the Great Plains region.
Location & geography
Situated in the east-central part of South Dakota, Alpena is surrounded by a vast landscape characterized by rolling hills and fertile plains. The city is approximately 15 miles from Wessington Springs to the southeast, 27 miles from Huron to the northeast, and 18 miles from the city of Carthage to the west. The city's total land area is 130.28 square miles, complemented by a water area of 0.60 square miles.
Community & economy
Alpena has a close-knit, friendly community where residents often engage in local events and activities, highlighting the strong sense of belonging. The local economy primarily revolves around agriculture, with farming and ranching being key industries that sustain the town. Daily life in Alpena is typically quiet, with residents enjoying outdoor activities and community gatherings that foster a strong, supportive atmosphere.
Transportation
Alpena is accessible via South Dakota Highway 34, which connects it to various nearby towns and cities. The nearest named airports include Huron Regional Airport, located about 25 miles to the northeast, providing necessary air travel options for residents and visitors alike. Public transit options are limited, as the city is primarily served by personal vehicles in this rural community.
History
Alpena was founded in the late 19th century and has roots in agriculture and farming, which continue to be vital to its economy today. Over the years, the city has witnessed the establishment of various community organizations and events that celebrate its cultural heritage. Notable events often include local fairs and community gatherings that highlight the history and traditions of the area.
Did you know?
One surprising fact about Alpena is that it has only one ZIP code, 57312, which simplifies postal services in the region. Additionally, it is part of the beautiful Jerauld County, known for its scenic landscapes and agricultural richness.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What is the ZIP code for Alpena, SD?
Alpena, SD has one ZIP code: 57312.
What is the main ZIP code for Alpena, SD?
The primary ZIP code for Alpena, SD is 57312. The city uses area code 605 for phone service.
What county is Alpena, SD in?
Alpena is located in Jerauld County, South Dakota.
How many ZIP codes are in Alpena, SD?
Alpena, SD has 1 ZIP code.
What is the ZIP code for the Alpena downtown area and main business district in Jerauld County?
The downtown area of Alpena, South Dakota is located in ZIP code 57312, which serves as the primary commercial and civic center for this small Jerauld County community.
If I'm sending mail to a residence in Alpena, South Dakota, what ZIP code should I use?
All mail addressed to Alpena, South Dakota should use the ZIP code 57312, as this is the only ZIP code that serves the entire city and surrounding area in Jerauld County.
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