Sinai, South Dakota Population 2020

129

Sinai is a city located in South Dakota. With a 2020 population of 129, it is the 215th largest city in South Dakota and the 17821st largest city in the United States. Sinai is currently growing at a rate of 1.57% annually and its population has increased by 7.50% since the most recent census, which recorded a population of 120 in 2010. Spanning over 0 miles, Sinai has a population density of 351 people per square mile.

The average household income in Sinai is $54,681 with a poverty rate of 12.09%. The median rental costs in recent years comes to $825 per month, and the median house value is $63,600. The median age in Sinai is 34.8 years, 38 years for males, and 29.5 years for females. For every 100 females there are 85.7 males.

Sinai Demographics

According to the most recent ACS, the racial composition of Sinai was:

  • White: 94.51%
  • Other race: 5.49%
  • Black or African American: 0.00%
  • Native American: 0.00%
  • Asian: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Two or more races: 0.00%
The current population of Sinai, South Dakota is 129, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 125.The last official US Census in 2010 recorded the population at 120.

Sinai, South Dakota Population 2020

Population by Race

Race Population Percentage
White8694.51%
Some Other Race55.49%

Sinai Population Pyramid 2020

Sinai Median Age

34.8


Total

38


Male

29.5


Female

Sinai Adults

There are 65 adults, (16 of whom are seniors) in Sinai.

Sinai Age Dependency

85.7

Age Dependency Ratio

32.7

Old Age Dependency Ratio

53.1

Child Dependency Ratio

Sinai Sex Ratio

Female

49

53.85%

Male

42

46.15%

Sinai Households and Families

Sinai Renter vs Owner Occupied by Household Type

Sinai Household Types

Type Owner Renter
Male100%0%
Non Family96.2%3.8%
All86%14%
Married68.8%31.3%
Female0%0%

86.0%

Rate of Home Ownership

Type Count Average Size Owned
All432.1286
Non Family261.1596.2
Married163.6968.8
Male12100
Female00

3.59

Average Family Size

2.12

Average Household Size

14%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Sinai Education

Education Attained Count Percentage
Less Than 9th Grade46.35%
9th to 12th Grade23.17%
High School Graduate1219.05%
Some College1422.22%
Associates Degree1015.87%
Bachelors Degree1523.81%
Graduate Degree69.52%

Sinai Educational Attainment by Race

Name Total High School Bachelors
White605521
Hispanic32
Other Race1

The highest rate of high school graduation is among white people with a rate of 91.67%.

The highest rate of bachelors degrees is among white people with a rate of 35.00%.

Name Average Male Female
Overall$38,958$41,250$28,750
Less Than High School$$$
High School Grad$41,250$41,250$
Some College$27,813$$27,188
Bachelors Degree$58,000$58,000$
Graduate Degree$$$

$38,958

Average Earnings

$41,250

Average Male

$28,750

Average Female

Sinai Language

Sinai Language by Age

Sinai Language

89.41% of Sinai residents speak only English, while 10.59% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 10.59% of the population.

Sinai Poverty

Sinai Poverty by Race

Name Total In Poverty Poverty Rate
Hispanic99100.00%
Other55100.00%
White8222.44%

12.09%

Overall Poverty Rate

16.67%

Male Poverty Rate

8.16%

Female Poverty Rate

Poverty in Sinai

The race most likely to be in poverty in Sinai is Other, with 100.00% below the poverty level.

The race least likely to be in poverty in Sinai is White, with 2.44% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.00%. Among those working part-time, it was 18.52%, and for those that did not work, the poverty rate was 10.00%.

Name Poverty
High School16.67%
Less Than High School16.67%
Some College8.33%
Bachelors or Greater0.00%
Name Poverty
Female Unemployed0.00%
Female Employed6.06%
Male Unemployed0.00%
Male Employed13.04%

Sinai Income

Sinai Income by Household Type

Name Median Mean
Households$43,958$54,681
Families-$60,135
Married Families--
Non Families$44,000$51,119

Sinai Marital Status

Sinai Marital Status

Marriage Rates

40.0%

Overall Marriage Rate

47.2%

Male Marriage Rate

34.1%

Female Marriage Rate

Sinai Married by Age and Sex

Sinai Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Sinai Marital Status by Race

Sinai Veterans

9

Number of Veterans

9

Male Veterans

Female Veterans

War Veterans
World War II7
Korea5
Vietnam2
First Gulf War
Second Gulf War

$Sinai Veterans by Education

0.00%

Veteran Poverty Rate

77.78%

Veteran Disability Rate

Sinai Employment Status

71.8%

Labor Force Participation

71.8%

Employment Rate

0%

Unemployment Rate

Sinai Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

71.43%

Born in South Dakota

98.90%

Native Born

1.10%

Foreign Born

1.10%

Non Citizen

Place of Birth

98.90% of Sinai residents were born in the United States, with 71.43% having been born in South Dakota. 1.10% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202012921.57%
201912721.60%
201812510.81%
201712421.64%
2016122-1-0.81%
201512310.82%
201412210.83%
2013121-1-0.82%
201212232.52%
20111190.00%
20101190.00%