Census Data for Armour

Population ...

The most recent Census Estimate<1> was for 2019 and it gave Armour a population of 667 people.

The last Decennial Census<2> was in 2010, which gave Armour a population of 699 people.

The city of Armour is located in Douglas County. The 2010 Census gave Douglas County; a population of 3,002 people. This means that Armour had 23.28% of the county's total population, making it Douglas' most populous community.

At the same time, South Dakota had a population of 814,180 people, meaning that Armour had 0.09% of the total population of South Dakota - making it the state's 119th most populous community.

Area ...

The 2010 Census shows that the sampling area for Armour has a total area of 0.95 square miles [2.5 km²]. Of this total, a small amount of the area is covered by water (0 square miles [0 km²]).

Douglas County has a land area of 431.8 square miles [1,118.4 km²]. At 0.94 square miles [2.4 km²], Armour has 0.22% of the county's total land area.

• Continue Reading ...
  • When the Census Bureau conducts a census for a city like Armour, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the city.
  • Things like population, area and housing for Armour reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Armour might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
  • Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:
  • Lat:   43° 19' 9"   (or 43.32°)
  • Lon:   -98° 20' 38"   (or -98.34°)
  • More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Armour had 378 Housing Units<3> and with its population of 699 people, this averages 1.85 people per Housing Unit.

• Continue Reading ...
  • The 2010 Census shows Armour had a land area of 0.94 square miles [2.4 km²]. This translates to 396.6 Housing Units per square mile [153.1 housing units/km²].
  • From the Census of 2000: Armour had 377 Housing Units, a population of 782 people and a land area of 0.94 square miles [2.4 km²]. This gives a density of 2.07 people per Housing Unit and 396 Housing Units per square mile [152.9 housing units/km²].
  • Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 and the 2000 Census, there were changes in the sampling area for Armour and you need to be careful when comparing between the censuses. More information about the nature of these the changes can be found in the section called Census-to-Census Observations ... (see below).

Douglas County ...

Armour is located in Douglas County<4> and is the County Seat for Douglas County.

The county had a population of 3,002 people at the 2010 Census. With it's population of 699 people, Armour represented 23.28% of the county's total.

In addition, where the city of Armour has a population density of 733 people per square mile [283.2 people/km²], Douglas County averages 6.95 people per square mile [2.68 people/km²].

For more information, please visit our Census Page for Douglas County.

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Armour, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Armour. It's important to note that from one Census to the next, the shape and location of the polygon can change.

• Continue Reading ...
  • Although we don't have specific information about the shape of the polygon for Armour or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
  • If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Location ...

While generally coinciding with the GPS location (latitude/longitude) of Armour, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Armour.

• Continue Reading ...
  • For the 2010 Census, the location was given as:
  • Lat:   43.319339°   (or 43°19'9" N)
  • Lon:   -98.344149°   (or -98°20'38" W)
  • For the 2000 Census, the location given was:
  • Lat:   43.319410°   (or 43°19'9" N)
  • Lon:   -98.347342°   (or -98°20'50" W)
  • The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 847 feet to the east<5> of the location that was used in the 2000 Census.
  • The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#1267268) to Armour. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Armour. The GNIS point has been mapped to the latitude/longitude:
  • Lat:   43.319435°   (or 43°19'9" N)
  • Lon:   -98.344245°   (or -98°20'39" W)
  • The GPS location given for the 2010 Census lies 43.28 feet to the southeast<6> of the point given by the GNIS for Armour. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Armour.

Miscellaneous Information for Armour ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Douglas County or the city of Armour:

• The GNIS Codes ...
  • The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Armour:
  • GNIS ID for Armour: 1267268
  • GNIS ID for Douglas County: 1266978
  • GNIS ID for State of South Dakota: 1785534

• The FIPS Codes ...
  • An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
  • State Code: 46 (South Dakota)
  • County Code: 043 (Douglas County)
  • Place Code: 02260 (Armour)
  • State & County Code: 46/043 (South Dakota / Douglas County)
  • State & Place Code: 46/02260 (South Dakota / Armour)

• Misc. Census Codes ...
  • Armour is located in Census Region #2 (the Midwest Region) and Division #4 (the West North-Central Division).

For more information about the various Federal identification codes, please visit our Misc Page for Armour.

Off-the-Road Links ...

Unfortunately, we don't know of a website for Armour. If you can help, please contact us through our Feedback Page.

The official website for State of South Dakota: sd.gov/

The official website of the U.S. Census Bureau

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)