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CITY · 1990 CENSUS

Sinai

South Dakota · 117 residents · 0.368 sq mi
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The short version

Sinai has notably lower household income than the US average, with a median household income of $21,667. Population has declined 12% since 2000. 7% of adults hold a bachelor's degree or higher, below the national rate of 20%. Median home value is $14,999. With a median age of 41.8, the population is older than the US median of 33.0.

At a glance
Lower income
below the US median
US median: $30,130
Older
median age 41.8
US median: 33.0
Less educated
7% hold a bachelor's degree
US average: 20%
More affordable
home values down 38%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

117
−12%vs 2000
vs 133 in 2000
1990 – 2025
318 / sq mi
−12%vs 2000
vs 361 / sq mi in 2000
US average: 221
41.8
+17%vs 2000
vs 35.6 in 2000
US average: 33.0
Population, 19902024
751141541942331990201020202024Sinai
2024215
1990201020202024
Section 02

Income & economy

$21,667
−25%inflation adjusted, since 2000
vs $38,000 in 2000
US average: $30,130
1990 – 2024
$9,847
−44%vs 2000
vs $17,451 in 2000
US average: $14,340
2.6%
−3.2 ptsvs 2000
vs 5.7% in 2000
US average: 13.2%
Section 03

Housing

$14,999
−38%inflation adjusted, since 2000
vs $32,100 in 2000
US average: $93,722
1990 – 2024
$163
−39%inflation adjusted, since 2000
vs $350 in 2000
US average: $450
80.0%
+0.4 ptsvs 2000
vs 79.6% in 2000
20.0% rent
0.7
−18%vs 2000
vs 0.8 in 2000
1990 – 2024
RELATED:See current rent listings in Sinai on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic100%(133)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%
Diversity Score0%(0)
1990
White, non-Hispanic100%(117)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
Diversity Score0%(0)
0
vs 0 in 2000
1990 – 2024
Section 05

Education

7.3%
−2.3 ptsvs 2000
vs 9.6% in 2000
US average: 20.3%
High school or higher
80.5%
−3.6 ptsvs 2000
vs 84.0% in 2000
US average: 75.2%
4.9%
+2.8 ptsvs 2000
vs 2.1% in 2000
US average: 7.1%
Section 06

Commute & transportation

18.9 min
+48%vs 2000
vs 12.8 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Sinai, South Dakota?

Sinai, South Dakota has about 117 residents according to the 1990 Census.

What is the median household income in Sinai, South Dakota?

The typical household in Sinai, South Dakota earns about $21,667 a year. Half of households make more than that, and half make less.

Is Sinai, South Dakota expensive?

In Sinai, South Dakota, the median home is worth about $14,999, and the typical rent is about $163 a month.

How educated are people in Sinai, South Dakota?

About 7.3% of adults age 25 and over in Sinai, South Dakota hold a bachelor's degree or higher.

What is the poverty rate in Sinai, South Dakota?

About 2.6% of people in Sinai, South Dakota live below the federal poverty line.

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

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