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CITY · 2000 CENSUS

Sinai

South Dakota · 133 residents · 0.368 sq mi
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The short version

Sinai has lower-than-average household income, with a median household income of $38,000. Population has held roughly steady since 1990. 10% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has more than doubled since 1990, reaching $32,100. Poverty is rare here, at 5.7% of residents.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 35.6
US median: 35.2
Less educated
10% hold a bachelor's degree
US average: 24%
Less affordable
home values up 62%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

133
+14%since 1990
from 117 in 1990
1990 – 2025
361 / sq mi
+14%since 1990
from 318 / sq mi in 1990
US average: 242
35.6
−15%since 1990
from 41.8 in 1990
US average: 35.2
Population, 19902024
751141541942331990201020202024Sinai
2024215
1990201020202024
Section 02

Income & economy

$38,000
+33%inflation adjusted, since 1990
from $21,667 in 1990
US average: $42,589
1990 – 2024
$17,451
+77%since 1990
from $9,847 in 1990
US average: $21,522
5.7%
+3.2 ptssince 1990
from 2.6% in 1990
US average: 12.4%
Section 03

Housing

$32,100
+62%inflation adjusted, since 1990
from $14,999 in 1990
US average: $120,530
1990 – 2024
$350
+63%inflation adjusted, since 1990
from $163 in 1990
US average: $602
79.6%
−0.4 ptssince 1990
from 80.0% in 1990
20.4% rent
0.8
+22%since 1990
from 0.7 in 1990
1990 – 2024
RELATED:See current rent listings in Sinai on RentDataNow
Section 04

Race & ethnicity

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

Education

9.6%
+2.3 ptssince 1990
from 7.3% in 1990
US average: 24.4%
High school or higher
84.0%
+3.6 ptssince 1990
from 80.5% in 1990
US average: 80.3%
2.1%
−2.8 ptssince 1990
from 4.9% in 1990
US average: 8.8%
Section 06

Commute & transportation

12.8 min
−32%since 1990
from 18.9 min in 1990
US average: 17.6
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 133 residents according to the 2000 Census.

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

The typical household in Sinai, South Dakota earns about $38,000 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 $32,100, and the typical rent is about $350 a month.

How educated are people in Sinai, South Dakota?

About 9.6% 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 5.7% of people in Sinai, South Dakota live below the federal poverty line.

Has Sinai, South Dakota grown since 1990?

Yes, Sinai, South Dakota has grown since 1990. The population has added about 16 residents, a change of about 14 percent over that period.

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

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