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Interior

A township of 59 people in Jackson County, South Dakota
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The places and views that make it Interior

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Outdoors in Interior

Parks & trails →
Conserved land60%38,525 of 64,434 acres
Trails12 mi0.1 mi per sq mi
Parks & preserves2named on the map

Know a trail or park that’s missing? Anyone can add it to OpenStreetMap, and it shows up here on the next refresh.

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

J.J. Duncan to L.E. Squire, Interior, South Dakota1915
From Interior’s story

J.J. Duncan to L.E. Squire, Interior, South Dakota, 1915

Photo · Wikimedia Commons

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About Interior

Town in South Dakota, United States
1907Established
65Population
1.3 sq miArea
2,382 ftElevation

Interior (Lakota: makȟóšiča otȟúŋwahe; "Badlands village") is a town in Jackson County, South Dakota, United States. The population was 65 at the 2020 census. Interior got its start in 1907 when the Milwaukee Railroad was extended to that point.

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

Town numbers

ZIP code57750
Area code605
Living in Interior

Health in Interior

Compared with South Dakota

16worse than SD

of 26 measures CDC estimates. The other 10 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Hans P Peterson Memorial Hospital - CahPhilip · 22.8 mi · ER · rural critical access
Horizon Health - Martin MedicalMartin · 41.4 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 57750, 57567 · CMS · HRSAHealth in Interior →

Natural hazards in Interior

60
High

Expected storm and flood damage is higher than in 60% of U.S. communities.

🌊 Inland flooding🥶 Cold waves🔥 Wildfire
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Interior →

Climate in Interior

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Interior has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 13°, and about 38 inches of snow falls in a normal winter.

37° / 14°Winter
60° / 34°Spring
86° / 58°Summer
63° / 36°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Interior →

Libraries near Interior

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Nearest: Jackson County LibraryKadoka · 20.7 miles · 23 hrs a week

Where Interior is

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

Location map

South Dakota · SD · Jackson CountyTown boundary on OpenStreetMap →

How things work in Interior

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01