Sinai, South Dakota
Sinai: town of the United States
About
Sinai is a town located in the county of Brookings in the U.S. state of South Dakota. Its population at the 2010 census was 120 and a population density of 126 people per km². After 10 years in 2020 city had an estimated population of 125 inhabitants.
Quick Facts about Sinai
| Population | 125 (2020) |
| Country | United States of America |
| State | South Dakota (United States) |
| County | Brookings County |
| Postal code | 57061 |
| Phone Area Codes | 605 |
| Area | 0.95 km2 |
| Latitude & Longitude | 44.2444,-97.0409 |
| Altitude | 1,781 feet / 543 meters |
| Time Zone | America/Chicago |
| Local time | 09:33:30 (15th April 2026) |
| Density | 131 Pop. per km² as of 2020 |
| Population growth | 4% (2010-2020) |
| Weather | 68℉ Chance Rain Showers 7-days weather |
Geography
Sinai is located at 44°14'40"N 97°2'27"W (44.2444100, -97.0408900).
Sinai map
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Weather
A chance of rain showers after 7am. Partly sunny, with a high near 68. East northeast wind 5 to 10 mph. Chance of precipitation is 40%.
7-Day ForecastDemographics
The population of Sinai increased by 4% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 120 | - | census |
| 2011 | 119 | -0.84% | estimation process |
| 2012 | 123 | 3.25% | estimation process |
| 2013 | 121 | -1.65% | estimation process |
| 2014 | 122 | 0.82% | estimation process |
| 2015 | 123 | 0.81% | estimation process |
| 2016 | 123 | 0% | estimation process |
| 2017 | 124 | 0.81% | estimation process |
| 2018 | 126 | 1.59% | estimation process |
| 2019 | 124 | -1.61% | estimation process |
| 2020 | 125 | 0.8% | estimation process |
Nearby Schools and Colleges
Schools and campuses linked to Sinai, SD. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 219356 | South Dakota State University | Brookings (SD) | 57007-1898 |
Closest post offices linked to Sinai.
| Post Office Name | City | ZIP |
|---|---|---|
| Sina Post Office | Sinai (SD) | 57061 |
Other cities in Brookings County
Cities, towns, neighborhoods & other populated places in Brookings County , SD.
| City Name | Population | Title |
|---|---|---|
| Medary | 1,504 | Township in Brookings County, South Dakota |
| Brookings | 446 | City in and county seat of Brookings County, South Dakota, United States |
| Volga | 374 | City in Brookings County, South Dakota, United States |
| Aurora | 299 | Town in Brookings County, South Dakota, United States |
| Bruce | 205 | City in Brookings County, South Dakota, United States |
| White | 135 | City in Brookings County, South Dakota, United States |
| Elkton | 99 | Township in Brookings County, South Dakota |
| Bushnell | 67 | Town in South Dakota, United States of America |