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Interior, SD
South Dakota›Jackson County

InteriorSD

A town of 45, settled in 1907. Nearly 59.8% of it is conserved land.

2 bordering townsMap →
Photo: Jared Winkler · CC BY-SA 4.0
Population
45
residents
Median age
21.4
years
Land area
1 sq mi

What makes Interior stand out

The thing Interior does most differently from other towns.

Picked automatically from the data
Small town

45 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns
Castle ButteWetaCastle ButteWetaInterior

Interior’s report card

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64°
Cloudy
H 78° · L 57°

Upcoming events

Nothing on the calendar.

The data

Ordered by what stands out in Interior. Another town gets a different order.

Outdoors

Nearly a third of Interior is conserved land

12 miles of trails across 2 parks and preserves.

59.8%conserved
59.8%
conserved · 38,525 of 64,434 acres
12 mi
of trails · 0.1 per sq mi
Biggest places to walkTrailsAcres
1. Badlands National Park10 mi13,948
2. Buffalo Gap National Grassland1 mi24,277
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-USParks & trails →
Climate

Four seasons, hot summers

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.

38″snow a winter

Typical low → high °F

Winter14–37°
Spring34–60°
Summer58–86°
Fall36–63°
Oct 7
typical first frost
May 5
typical last frost
+1.2°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020Full climate →
Health

How healthy Interior is

Interior beats the South Dakota average on 0 of 26 CDC measures and trails it on 16.

26 measures vs. South Dakota
0 better10 too close to call16 worse
What stands outInteriorSD
More older adults who have lost all their teeth20.2%12.7%
More adults with COPD10.4%6.7%
More smokers23.1%15.2%
Hans P Peterson Memorial Hospital - Cah
22.8 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →
Natural hazards

High risk, with inland flooding at the top

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

60risk score of 100
FEMA risk score
60High riskLowerHigher
Inland floodingCold wavesWildfire
FEMA National Risk Index · OpenFEMANatural hazards →
Unknown Correspondent, Interior, South Dakota, to J.J. Dunken [Duncan]
1913 · Unknown Correspondent, Interior, South Dakota, to J.J. Dunken [Duncan] · Wikimedia Commons
Interior’s story

119 years in pictures

12 postcards, papers and photographs from public archives, and 1 places on the National Register.

J.J. Duncan to L.E. Squire, Interior, South DakotaInterior SDYellowstone 082
Explore the history →

About Interior

Town in South Dakota, United States

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)

Established
1907
Population
65
Area
1.3 sq mi
Elevation
2,382 ft
ZIP code
57750
Area code
605

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Photo of Interior

Interior, SD · Photo: Jared Winkler · CC BY-SA 4.0 · Source ↗