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Alpena

A township of 87 people in Jerauld County, South Dakota

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Outdoors in Alpena

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Conserved land24%5,075 of 21,253 acres

Trails5.2 mi0.2 mi per sq mi

Parks & preserves0named on the map

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Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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Know Alpena

The town at a glance, and the guide to how things work

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About Alpena

Town in South Dakota, United States

1883Established

212Population

1.6 sq miArea

1,319 ftElevation

Alpena (pronounced al-PEE'-nuh) is a town in northeastern corner of Jerauld County, South Dakota, United States. As of the 2020 census, Alpena had a population of 212.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code57312

Area code605

Living in Alpena

Health in Alpena

Compared with South Dakota

1better than SD·1worse

of 26 measures CDC estimates. The other 24 are too close to call.

Conditions 1▼ 11 close Habits all close Care 1▲ 6 close Mind all close

BetterToo close to callWorse

What stands out

86.7%More adults getting cholesterol checkedSD 84.8% · better 10.1%More adults who have had cancerSD 9.2% · worse

Care nearby

Avera Weskota Memorial Medical Center - CahWessington Springs · 9.5 mi · ER · rural critical access

Horizon Health - WoonsocketWoonsocket · 9.5 mi · sliding-scale fees

Primary careShortage · county-wide

DentalNo shortage

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP code 57312 · CMS · HRSAHealth in Alpena →

Natural hazards in Alpena

High

Expected storm and flood damage is higher than in 61% of U.S. communities.

🥶 Cold waves🌊 Inland flooding🌵 Drought

0Does Alpena flood?no paid flood claims on record NoneDisasters that paid out hereof 17 declared for Jerauld County MapAlpena vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Alpena →

Climate in Alpena

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Alpena has cold, snowy winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 7°, and about 45 inches of snow falls in a normal winter.

30° / 10°Winter

57° / 34°Spring

83° / 59°Summer

60° / 36°Fall

How much snow does Alpena get?About 45 inches a winter.Rain & snow →When is the first frost?Around Oct 8, with the last in spring around May 2.Frost dates →Is it warmer than it used to be?+0.9° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Alpena →

Libraries near Alpena

Nearest: Woonsocket Community LibraryWoonsocket · 9.1 miles · 30 hrs a week

Famous people from AlpenaWriters, athletes, leaders and more who were born in Alpena.Meet them →

Where Alpena is

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Locator map of Alpena — Wikimedia Commons · Map: Arkyan · CC BY-SA 3.0

Location map

South Dakota · SD · Jerauld CountyTown boundary on OpenStreetMap →

Around town

Bordering towns

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Alpena Warren Franklin

EWarren SFranklin

Compare side by side:Alpena vs Warren Alpena vs Franklin

How things work in Alpena

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Town hall & decisionsTrash, recycling & yard wasteUtilities & servicesStreets, parking & getting aroundSafety & preparednessSchools & learningParks, sports & recreationHealth & emergency care