Summary for Alsen

About Alsen (Click for our profile page)

Located in: Primarily Clay County (see below). A portion of Alsen extends into Union County.

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

Telephone Area Code: 605

Elevation: 1,330 feet [405.38 m] above sea level<1>

GPS Coordinates (Latitude/Longitude)<2>

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

Lat: 42.962100° (or 42°57'43" N)

Lon: -96.805500° (or -96°48'19" W)

USGS Topo Map: Alsen<3>

Federal GNIS/FIPS Codes for Alsen

GNIS ID: 1260973

FIPS State / Place Code: 46 / 01130

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

The community of Vermillion is the County Seat for Clay County.

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

Population

Total Area:<5> 417.2 sq. miles [1,080.6 km²] - of which 1.21% is water (5.05 sq. miles [13.1 km²])

Housing Units: <6> 5,639

Federal GNIS/FIPS Codes for Clay

GNIS ID: 1265764

FIPS State / County Code: 46 / 027

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

From the US Census

Population

Websites for State of South Dakota

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 Alsen)

Footnotes ...

<1>	The elevation is an estimate for the area around Alsen - it will be higher in some places and lower in others.
<2>	Longitude & latitude values may not be the geographic center of Alsen, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<3>	Name of the USGS 7.5 Minute topographic map which includes Alsen.
<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 Alsen. 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).