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South Dakota›Fall River County

AngosturaSD

A town of 144.

Is Angostura a good place to live?

Of the 36 South Dakota towns we compare, none has a higher July high than Angostura. 16% of the land in Angostura is conserved, above both South Dakota’s towns (3.3%) and U.S. towns (4.3%). Angostura Recreation Area, at 922 acres with 5 miles of trail, is the biggest park or preserve. Angostura has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

144 people, and everyone knows the way

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

Nearby towns
Getting set up

Moving to Angostura: who provides what

Angostura is unincorporated, so Fall River County and regional agencies provide most services.

PowerBlack Hills Energy15.1¢/kWh · EIA 2025HIFLD · EIA
WaterFall River Wud water systemNo health-based violations in 5 years · EPAEPA
Internet2 providers61% of addresses get 100/20 MbpsFCC
Trash & county servicesFall River CountyFall River County provides services here
SchoolsHot Springs School District 23-2Which school depends on your addressNCES
Register to voteIn personSouth Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before).vote.gov
Who runs elections hereFall River County AuditorFall River County; contacts on the Handbook page.FVAP, Jul 2023
ZIP code5774757747 100%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.

The data

Ordered by what stands out in Angostura.

Who lives here

42% of residents are 65 or older

People 65 and older are 42% of residents (18% statewide); adults 18 to 34 are 0% of residents (22% statewide). 40% of Angostura adults 25 and older hold a bachelor’s degree or more, against 33% in South Dakota’s towns and 29% across U.S. towns.

53.9median age · SD 38
AngosturaSouth DakotaUnited States

Ages · share of residents

Education · adults 25 and older

No diploma0%
High school28%
Some college13%
Associate’s19%
Bachelor’s11%
Graduate28%

Women and men · all residents

Somewhere between 43% and 69% women

The Census survey reached too few of Angostura’s residents to say more: its margin here is ±12.9 points. Across South Dakota, 49.2% of residents are women.

Ages and education in Angostura
AngosturaSDU.S.
Under 1011.1%13.1%11.6%
10 to 179.7%11.2%10.3%
18 to 240%9.3%9.1%
25 to 340%12.6%13.7%
35 to 4422.9%12.6%13.2%
45 to 546.9%10.7%12.2%
55 to 646.9%12.6%12.7%
65 to 7439.6%11%10.2%
75 and older2.8%7%7%
No diploma0%6.8%10.4%
High school28.1%29%26%
Some college13.2%19.9%19.1%
Associate’s19.3%12.3%8.8%
Bachelor’s11.4%21.9%21.6%
Graduate28.1%10%14.1%

U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 100, single groups can be off by several points

Natural hazards

Very high risk in Angostura, with inland flooding at the top

Expected storm and flood damage is higher than in 83% of U.S. communities.

83risk score of 100
FEMA risk score
83Very high riskLowerHigher
Inland floodingWildfireCold waves

FEMA National Risk Index · OpenFEMA

Work & commute

With 0.3 jobs for every working resident, most of Angostura’s workers commute out

Most working residents leave Angostura for work: only 4% work in town. Angostura’s median household income is $105,000. The top destinations are Hot Springs (26%), Rapid City (9%) and Edgemont (6%).

4%work in town
AngosturaSouth Dakota townsU.S. towns
Working residents who work in town3.8%29%8%
Median household income$105,000$72,000$80,000

Where working residents work

In Angostura4%
Hot Springs26%
Rapid City9%
Edgemont6%
Pierre4%
23 mi
median commute distance
17
jobs based in Angostura
A commuter town
jobs vs. working residents

Census LEHD 2023 · ACS

Climate

In Angostura, expect four seasons and hot summers

Angostura has cold, snowy winters and warm summers, with very little rain. The January low in Angostura is 14°F.

32″snow a winter

Typical low → high °F

Winter14–40°
Spring33–61°
Summer56–86°
Fall34–64°
Sep 27
typical first frost
May 16
typical last frost
+1.4°
vs. the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Outdoors

Angostura has set aside 15.5% of its land for conservation

5.1 miles of trail in 1 park or preserve.

15.5%conserved
15.5%
conserved · 1,241 of 8,019 acres
5.1 mi
of trails · 0.4 per sq mi
Biggest places to walkTrailsAcres
1. Angostura Recreation Area5 mi922

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

Health

Angostura stands out in South Dakota and nationally, with more of its adults who have high blood pressure

42% of Angostura adults have high blood pressure. Among 36 South Dakota towns, just 2 have a higher share of adults who have diabetes than Angostura. 20% of Angostura adults have been diagnosed with depression.

AngosturaSouth Dakota townsU.S. towns
High blood pressure (CDC PLACES)42%31%35%
Diabetes (CDC PLACES)15%10%12%
Frequent mental distress (CDC PLACES)14%15%17%
Depression (CDC PLACES)20%22%23%
26 measures vs. South Dakota
2 better16 too close to call8 worse
What stands outAngosturaSD
More adults treating high blood pressure80.5%75.9%
More adults getting cholesterol checked88.3%84.8%
More adults with COPD9.3%6.7%
Fall River Hospital - Cah
7.6 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

Keep exploring

Everything we know about Angostura

15pages on Angostura
After high school

Colleges nearby

None within 15 miles of Angostura; the nearest are

A commuter town

96% of working residents leave Angostura for work

Where Angostura’s working residents go each day. Line width shows the share.

26% → Hot Springs Hot Springs 26% 9% → Rapid City Rapid City 9% 6% → Edgemont Edgemont 6% 4% → Pierre Pierre 4% 2% → Chadron Chadron 2% 2% → Alliance Alliance 2% Angostura · 4% stay
17jobs based in Angostura
4%of working residents work in town
23 mimedian commute distance

Census LEHD 2023

About Angostura

Census-designated place in South Dakota, United States

Angostura is an unincorporated area and census-designated place (CDP) in Fall River County, South Dakota, United States. The population was 159 at the 2020 census. It is northeast of the center of the county, between U.S. Routes 18/385 to the northeast and Angostura Reservoir to the southwest. Residential development is primarily in the Angostura Heights area in the southern part of the CDP. The shoreline area next to the reservoir is part of the state-managed Angostura Recreation Area. The community is 11 miles (18 km) southeast of Hot Springs and 13 miles (21 km) northwest of Oelrichs.

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

Elevation
3,425 ft

Questions about Angostura

Short answers, built from the data on this page.

Is Angostura, SD a good place to live?

Angostura has fewer than 1,000 residents, too few for fair grades; the figures below are still real.