Sinai is a city located in Brookings County South Dakota. Sinai has a 2024 population of 102. Sinai is currently growing at a rate of 2% annually and its population has increased by 6.25% since the most recent census, which recorded a population of 96 in 2020.
The average household income in Sinai is $60,245 with a poverty rate of 4.6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Sinai is 24.7 years, 24.9 years for males, and 15.6 years for females.
According to the most recent ACS, the racial composition of Sinai was:
White
Other race
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Two or more races
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 67 | 2.6 | 82.1 | 17.9 |
| Non Family | 38 | 1.03 | 78.9 | 21.1 |
| Married | 22 | 5.45 | 100 | 0 |
| Female | 6 | 2.17 | 33.3 | 66.7 |
| Male | 1 | 2 | 100 | 0 |
4.62
Average Family Size
2.6
Average Household Size
82.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 97.37%.
The highest rate of bachelors degrees is among white people with a rate of 36.84%.
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
90.91% of Sinai residents speak only English, while 9.09% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 9.09% of the population.
rate
4.6%
Overall Poverty Rate
5.95%
Male Poverty Rate
3.33%
Female Poverty Rate
The race most likely to be in poverty in Sinai is Other, with 100% below the poverty level.
The race least likely to be in poverty in Sinai is White, with 1.2% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.39%. Among those working part-time, it was 8.33%, and for those that did not work, the poverty rate was 10.53%.
Married
Widowed
Divorced
Separated
NeverMarried
45.4%
Overall Marriage Rate
40.0%
Male Marriage Rate
52.1%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
90%
Veteran Disability Rate
LaborForceParticipation
81.4%
Labor Force Participation
81.4%
Employment Rate
0%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
65.52%
Born in Sinai
98.85%
Native Born
1.15%
Foreign Born
1.15%
Non Citizen
0%
Naturalized
98.85% of Sinai residents were born in the United States, with 65.52% having been born in South Dakota. 1.15% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 109 | 1 | 0.93% |
| 2028 | 108 | 2 | 1.89% |
| 2027 | 106 | 1 | 0.95% |
| 2026 | 105 | 2 | 1.94% |
| 2025 | 103 | 1 | 0.98% |
| 2024 | 102 | 2 | 2% |
| 2023 | 100 | 1 | 1.01% |
| 2022 | 99 | 2 | 2.06% |
| 2021 | 97 | 1 | 1.04% |
| 2020 | 96 | -30 | -23.81% |
| 2019 | 126 | -1 | -0.79% |
| 2018 | 127 | 2 | 1.6% |
| 2017 | 125 | 2 | 1.63% |
| 2016 | 123 | 0 | 0% |
| 2015 | 123 | 0 | 0% |
| 2014 | 123 | 2 | 1.65% |
| 2013 | 121 | -2 | -1.63% |
| 2012 | 123 | 4 | 3.36% |
| 2011 | 119 | 0 | 0% |
| 2010 | 119 | 0 | 0% |