La Plant, South Dakota

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La Plant, South Dakota
Location in Dewey County and the state of South Dakota
Location in Dewey County and the state of South Dakota
Coordinates: 45°8′29″N 100°39′22″W / 45.14139°N 100.65611°W / 45.14139; -100.65611Coordinates: 45°8′29″N 100°39′22″W / 45.14139°N 100.65611°W / 45.14139; -100.65611
CountryUnited States
StateSouth Dakota
 • Total9.5 sq mi (24.6 km2)
 • Land9.5 sq mi (24.5 km2)
 • Water0.04 sq mi (0.1 km2)
1,972 ft (601 m)
 • Total167
 • Density18/sq mi (7.0/km2)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
ZIP code
Area code(s)605
FIPS code46-35940[1]
GNIS feature ID1255989[2]

La Plant is a census-designated place (CDP) in Dewey County, South Dakota, United States. The population was 167 at the 2020 census.[3] It is within the Cheyenne River Indian Reservation.

La Plant was laid out in 1910, and named in honor of a local cattleman.[4]


La Plant is located in east-central Dewey County at 45°8′29″N 100°39′22″W / 45.14139°N 100.65611°W / 45.14139; -100.65611 (45.141297, -100.656127).[5] U.S. Route 212 passes through the community, leading west 32 miles (51 km) to Eagle Butte and east 39 miles (63 km) to Gettysburg. The Missouri River (Lake Oahe) is 20 miles (32 km) to the east, and Pierre, the state capital, is 76 miles (122 km) to the southeast.

According to the United States Census Bureau, the CDP has a total area of 9.5 square miles (24.6 km2), of which 9.5 square miles (24.5 km2) is land and 0.04 square miles (0.1 km2), or 0.40%, is water.[6]


As of the census[1] of 2000, there were 150 people, 34 households, and 29 families residing in the CDP. The population density was 16.6 people per square mile (6.4/km2). There were 42 housing units at an average density of 4.7/sq mi (1.8/km2). The racial makeup of the CDP was 100.00% Native American.

There were 34 households, out of which 58.8% had children under the age of 18 living with them, 41.2% were married couples living together, 35.3% had a female householder with no husband present, and 11.8% were non-families. 11.8% of all households were made up of individuals, and 5.9% had someone living alone who was 65 years of age or older. The average household size was 4.41 and the average family size was 4.73.

In the CDP, the population was spread out, with 45.3% under the age of 18, 13.3% from 18 to 24, 22.7% from 25 to 44, 14.7% from 45 to 64, and 4.0% who were 65 years of age or older. The median age was 19 years. For every 100 females, there were 105.5 males. For every 100 females age 18 and over, there were 95.2 males.

The median income for a household in the CDP was $18,194, and the median income for a family was $18,333. Males had a median income of $41,042 versus $7,250 for females. The per capita income for the CDP was $6,888. There were 62.5% of families and 61.6% of the population living below the poverty line, including 48.5% of those under 18 and 56.3% of those over 64.


It is in Eagle Butte School District 20-1,[7] which jointly operates Cheyenne-Eagle Butte School with the Bureau of Indian Education (BIE).[8]


  1. ^ a b "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
  2. ^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
  3. ^ "U.S. Census Bureau: La Plant CDP, South Dakota". United States Census Bureau. Retrieved 13 February 2022.
  4. ^ Federal Writers' Project (1940). South Dakota place-names, v.1-3. University of South Dakota. p. 47.
  5. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
  6. ^ "Geographic Identifiers: 2010 Demographic Profile Data (G001): La Plant CDP, South Dakota". U.S. Census Bureau, American Factfinder. Archived from the original on February 13, 2020. Retrieved January 6, 2016.
  7. ^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Dewey County, SD" (PDF). U.S. Census Bureau. Retrieved 2021-08-06.
  8. ^ "About". Eagle Butte School District 20-1. Retrieved 2021-08-06.