Sinai, SD Community Profile: Data

Sinai Local Links & Resources:
Hotels | Resources | ALL Sinai Content

Sinai, South Dakota - Basic Facts

Sinai is the common name for the community and surrounding area while the formal official name is the Town of Sinai.

It is an incorporated place (Class Code P1) located in Brookings County at latitude 44.2444 and longitude -97.0409. Brookings County is in the Central time zone (GMT -6). The elevation is 1,785 feet.

The formal boundaries for the Town of Sinai (see map) encompass a land area of 0.37 sq. miles and a water area of 0 sq. miles.

Camera Icon Photos of the local Sinai, SD area

Also See: Sinai, SD ZIP Codes and ZIP Code Maps

Sinai, SD Data & Demographics (As of July 1, 2014)


Total Population 124
Population in Households 124
Population in Familes 108
Population in Group Qrtrs 0
Population Density1 337
Diversity Index2 9


Total Households 54
Average Household Size 2.3
Family Households 42
Average Family Size 3


Total Housing Units 63 (100%)
Owner Occupied HU 50 (79.4%)
Renter Occupied HU 5 ( 7.9%)
Vacant Housing Units 9 (14.3%)
Median Home Value $96,667
Average Home Value $150,521


Median Household Income $71,555
Average Household Income $89,046
Per Capita Income $36,485
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.77% 0.95%
Households 0.89% 1.09%
Families 6.61% 0.47%
Median Household Income   2.57%
Per Capita Income   2.42%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Sinai, SD - Peer Comparisons by Rank and Percentile

The table below compares Sinai to the other 390 incorporated cities, towns and CDPs in South Dakota by rank and percentile using July 1, 2014 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 267 32nd
Population Density1 # 227 42nd
Diversity Index2 # 227 41st
Median Household Income # 13 97th
Per Capita Income # 8 98th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.