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Summary for Roslyn

About Roslyn (Click for our profile page)

Located in: Day County (see below)

Pronunciation: RAHZ-luhn <1>

Time Zone: Roslyn lies in the Central Time Zone (CST/CDT)

Telephone Area Code: 605

ZIP Code: 57261<2>

Elevation: 1,860 feet [566.93 m] above sea level<3>

From the 2010 US Census (For more detail, see our Census Page for Roslyn)

Population

Year	Population
2019 Est:<4>	169 (7.65% decrease since 2010)
2010:	183 (18.67% decrease since 2000)
2000:	225

Total Area:<5> 0.2 sq. miles [0.5 km²]

Housing Units:<6> 105

GPS Coordinates (Latitude/Longitude)<7>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Roslyn:

Lat: 45.496600° (or 45°29'47" N)

Lon: -97.493700° (or -97°29'37" W)

USGS Topo Map: Roslyn<8>

Federal GNIS/FIPS Codes for Roslyn

GNIS ID: 1267556

FIPS State / Place Code: 46 / 56380

(For more about Federal Codes, see our Misc Page for Roslyn)

About Day County

The town of Webster is the County Seat for {Day County}.

From the 2010 US Census (For more detail, see our Census Page for Day)

Population

Year	Population
2019 Est:	5,424 (4.99% decrease since 2010)
2010	5,709 (8.9% decrease since 2000)
2000:	6,267

Total Area: 1,091 sq. miles [2,825.9 km²] - of which 5.79% is water (63.2 sq. miles [163.8 km²])

Housing Units: 3,630

Official Website: https://day.sdcounties.org/

Federal GNIS/FIPS Codes for Day

GNIS ID: 1265790

FIPS State / County Code: 46 / 037

(For more about Federal Codes, see our Misc Page for Roslyn)

About South Dakota

From the US Census

Population

Year	Population
2019 Est:	887,127 (8.96% increase since 2010)
2010:	814,180 (7.86% increase since 2000)
2000:	754,844

Websites for State of South Dakota

Official Website: https://www.sd.gov/

Tourism: https://www.travelsouthdakota.com/

Parks: https://gfp.sd.gov/parks/

Fishing: https://gfp.sd.gov/fish/

Hunting: https://gfp.sd.gov/hunt/

Federal GNIS/FIPS Codes for State of South Dakota

GNIS ID: 1785534

FIPS State: 46

(For more about Federal Codes, see our Misc Page for Roslyn)

Footnotes ...

<1>	The pronunciation we've provided is our attempt to give a phonetic pronunciation for Roslyn. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<2>	ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a town (such as Roslyn). When looking for a ZIP Code, whether Roslyn or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<3>	The elevation is an estimate for the area around Roslyn - it will be higher in some places and lower in others.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Roslyn. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<7>	Longitude & latitude values may not be the geographic center of Roslyn, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<8>	Name of the USGS 7.5 Minute topographic map which includes Roslyn.