Census Data for Letcher ...
The most recent Census Estimate<1> was for 2019 and it gave Letcher a population of 176 people.
The last Decennial Census<2> was in 2010, which gave Letcher a population of 173 people.
The town of Letcher is located in Sanborn County. The 2010 Census gave Sanborn County; a population of 2,355 people. This means that Letcher had 7.35% of the county's total population, making it Sanborn's 2nd most populous community.
At the same time, South Dakota had a population of 814,180 people, meaning that Letcher had 0.02% of the total population of South Dakota - making it the state's 259th most populous community.
The 2010 Census shows that the sampling area for Letcher has a total area of 0.65 square miles [1.7 km²]. Of this total, 0.62 square miles [1.6 km²] is land, with the balance (5.67%) being water (0.04 square miles [0.1 km²]).
Sanborn County has a land area of 569 square miles [1,474.5 km²]. At 0.62 square miles [1.6 km²], Letcher has 0.11% of the county's total land area.
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- When the Census Bureau conducts a census for a town like Letcher, 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 town.
- Things like population, area and housing for Letcher reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Letcher 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° 54' 1" (or 43.9°)
- Lon: -98° 8' 47" (or -98.15°)
- 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, Letcher had 83 Housing Units<3> and with its population of 173 people, this averages 2.08 people per Housing Unit.
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- The 2010 Census shows Letcher had a land area of 0.62 square miles [1.6 km²]. This translates to 127.1 Housing Units per square mile [49.08 housing units/km²].
- From the Census of 2000: Letcher had 84 Housing Units, a population of 177 people and a land area of 0.61 square miles [1.6 km²]. This gives a density of 2.11 people per Housing Unit and 130.5 Housing Units per square mile [50.4 housing units/km²].
- Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 Census and the 2000 Census, there were changes in the sampling area for Letcher and you need to be careful when comparing results between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).
Sanborn County ...
The community of Letcher is located in Sanborn County<4>.
The county had a population of 2,355 people at the 2010 Census. With it's population of 173 people, Letcher represented 7.35% of the county's total.
In addition, where the town of Letcher has a population density of 264.9 people per square mile [102.3 people/km²], Sanborn County averages 4.14 people per square mile [1.6 people/km²].
For more information, please visit our Census Page for Sanborn County.
Census-to-Census Observations ...
When the Census Bureau takes a census count (or enumeration) for Letcher, 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 Letcher. It's important to note that from one Census to the next, the shape and location of the polygon can change.
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- Although we don't have specific information about the shape of the polygon for Letcher 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.
While generally coinciding with the GPS location (latitude/longitude) of Letcher, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Letcher.
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- For the 2010 Census, the location was given as:
- Lat: 43.900282° (or 43°54'1" N)
- Lon: -98.146508° (or -98°8'47" W)
- For the 2000 Census, the location given was:
- Lat: 43.897780° (or 43°53'52" N)
- Lon: -98.139366° (or -98°8'21" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 2,086 feet to the northwest<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 (#1267462) to Letcher. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Letcher. The GNIS point has been mapped to the latitude/longitude:
- Lat: 43.897762° (or 43°53'51" N)
- Lon: -98.143694° (or -98°8'37" W)
- The GPS location given for the 2010 Census lies 1,179 feet to the northwest<6> of the point given by the GNIS for Letcher. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Letcher.
Miscellaneous Information for Letcher ...
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 Sanborn County or the town of Letcher:
- The GNIS Codes ...
- The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Letcher:
- GNIS ID for Letcher: 1267462
- GNIS ID for Sanborn County: 1266977
- GNIS ID for State of South Dakota: 1785534
- Misc. Census Codes ...
- Letcher 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 Letcher.
Other Roadside Stops ...
Search for a Community located in South Dakota
About Sanborn County
About South Dakota
Off-the-Road Links ...
The official website for Letcher: www.letchersd.com/
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)
|<1>||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.|
|<2>||Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.|
|<3>||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).|
|<4>||If you're interested in how the shape of South Dakota's counties, including Sanborn, have changed over time, we recommend the Atlas of Historical County Boundaries.|
|<5>||The calculated bearing (or angle) to the 2010 Census location is 64 degrees and a distance of 2,086 feet.|
|<6>||The calculated bearing (or angle) to the GNIS point is 38 degrees and a distance of 1,179 feet.|