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CITY

Mountain Plains

South Dakota · 350 residents · 1.60 sq mi
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The short version

With 350 people, Mountain Plains is a city in South Dakota. Households here earn about 231% more than in South Dakota as a whole. At a median age of 63.4, this is an older place than the country as a whole. Households take in $248,558 a year at the median, 202% more than the country as a whole. Owners hold 100% of the housing stock. Few US cities rank higher on income.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 63.4
US median: 38.9
More educated
43% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

350
−15%since 2023
from 412 in 2023
2020 – 2024
219 / sq mi
−15%since 2023
from 258 / sq mi in 2023
US average: 281
63.4
+1%since 2023
from 62.6 in 2023
US average: 38.9
Land area
1.60 sq mi
Population, 20202024
27533138844450020202024Mountain Plains
2024350
20202024
Age distribution, 2024
Under 50%(0)
US avg: 5.6%
5 to 90%(0)
US avg: 6%
10 to 140%(0)
US avg: 6.4%
15 to 190%(0)
US avg: 6.6%
20 to 249.1%(32)
US avg: 6.5%
25 to 346%(21)
US avg: 13.7%
35 to 444.3%(15)
US avg: 13.2%
45 to 540%(0)
US avg: 12.2%
55 to 6441.7%(146)
US avg: 12.7%
65 to 7430.3%(106)
US avg: 10.2%
75 to 845.7%(20)
US avg: 5.1%
85 and over2.9%(10)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$248,558
+45%inflation adjusted, since 2023
from $166,641 in 2023
US average: $82,259
2020 – 2024
$162,437
+23%since 2023
from $132,536 in 2023
US average: $44,673
Households earning $100K+
83.3%
+0.6 ptssince 2023
from 82.7% in 2023
US average: 53.3%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 12.5%
0.498
−2%since 2023
from 0.506 in 2023
US average: 0.476
Workforce by industry, 2024
Other services30.6%
US avg: 6.7%
Public administration30.6%
US avg: 4.8%
Information29%
US avg: 10.8%
Wholesale trade15.1%
US avg: 6.9%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Retail trade0%
US avg: 9.9%
Transportation & warehousing0%
US avg: 2.2%
Finance & insurance0%
US avg: 5.9%
Professional, scientific, technical0%
US avg: 5.1%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$613,200
−2%inflation adjusted, since 2023
from $606,100 in 2023
US average: $376,019
2020 – 2024
100.0%
Unchangedsince 2023
from 100.0% in 2023
0.0% rent
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 10.0%
2.33 people
−5%since 2023
from 2.45 people in 2023
US average: 2.54
28.7%
−2.3 ptssince 2023
from 31.0% in 2023
US average: 22.9%
2.5
−32%since 2023
from 3.6 in 2023
2020 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2023
White, non-Hispanic89.3%(368)
Black0%(0)
Hispanic / Latino0.7%(3)
Asian4.4%(18)
Other5.6%(23)
2024
White, non-Hispanic82.9%(290)
Black0%(0)
Hispanic / Latino0.6%(2)
Asian7.4%(26)
Other9.1%(32)
37
+52%since 2023
from 25 in 2023
2021 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins

Detailed origins & ancestry

Asian origin
Filipino7.4%(26)
Ancestry
German26.3%(92)
English16.6%(58)
French12.3%(43)
Norwegian11.7%(41)
Irish10.6%(37)
Finnish6.6%(23)
Swedish3.1%(11)
Scotch-Irish2.9%(10)
Danish0.9%(3)
Section 05

Education

43.1%
−1.4 ptssince 2023
from 44.4% in 2023
US average: 35.6%
High school or higher
100.0%
+3.8 ptssince 2023
from 96.2% in 2023
US average: 89.6%
5.0%
+3.3 ptssince 2023
from 1.8% in 2023
US average: 14.0%
Section 06

Commute & transportation

15.5 min
−11%since 2023
from 17.5 min in 2023
US average: 26.5
94.1%
−1.5 ptssince 2023
from 95.5% in 2023
US average: 68.9%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.5%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 3.2%
5.9%
+1.5 ptssince 2023
from 4.5% in 2023
US average: 15.0%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 2.4%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 0.4%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 8.3%
Section 07

Work & employment

14.7%
+6.2 ptssince 2023
from 8.5% in 2023
US average: 5.2%
62.3%
−3.2 ptssince 2023
from 65.5% in 2023
US average: 63.5%
Women 20-64 in the labor force
89.5%
US average: 74.6%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 13.1%
38.2%
+5.8 ptssince 2023
from 32.4% in 2023
US average: 42.5%
Section 08

People & community

51.4%
+2.6 ptssince 2023
from 48.8% in 2023
48.6%
−2.6 ptssince 2023
from 51.2% in 2023
7.4%
−0.1 ptssince 2023
from 7.5% in 2023
US average: 14.1%
8.6%
+1.7 ptssince 2023
from 6.8% in 2023
US average: 6.2%
10.0%
−3.1 ptssince 2023
from 13.1% in 2023
US average: 13.3%
8.0%
−10.9 ptssince 2023
from 18.9% in 2023
US average: 8.4%
92.7%
+11.7 ptssince 2023
from 81.0% in 2023
US average: 91.0%
Computer in household
92.7%
US average: 95.5%
80.3%
US average: 87.7%
100.0%
Unchangedsince 2023
from 100.0% in 2023
US average: 77.7%
0.0%
Unchangedsince 2023
from 0.0% in 2023
US average: 13.6%
Marital status
Men 15+
Never married11.7%(21)
Married80%(144)
Widowed0%(0)
Divorced8.3%(15)
Women 15+
Never married27.6%(47)
Married66.5%(113)
Widowed5.9%(10)
Divorced0%(0)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

8.0%
−10.9 ptssince 2023
from 18.9% in 2023
US average: 8.4%
42.3%
US average: 54.8%
Direct-purchase
28.6%
US average: 13.8%
38.9%
US average: 18.4%
7.4%
US average: 20.9%
VA health care
4.3%
US average: 2.2%
Any private
70.9%
US average: 67.1%
Any public
38.9%
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)0%(0)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era100%(30)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%

Share of the 30 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Mountain Plains, South Dakota?

Mountain Plains, South Dakota has about 350 residents according to the 2024 American Community Survey.

What is the median household income in Mountain Plains, South Dakota?

The typical household in Mountain Plains, South Dakota earns about $248,558 a year. Half of households make more than that, and half make less.

Is Mountain Plains, South Dakota expensive?

In Mountain Plains, South Dakota, the median home is worth about $613,200.

How educated are people in Mountain Plains, South Dakota?

About 43.1% of adults age 25 and over in Mountain Plains, South Dakota hold a bachelor's degree or higher.

What is the poverty rate in Mountain Plains, South Dakota?

About 0.0% of people in Mountain Plains, South Dakota live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →