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Pennington County, South Dakota
Map of South Dakota highlighting Pennington County
Location in the state of South Dakota
Map of USA SD
South Dakota's location in the U.S.
Founded information needed
Seat Rapid City
Largest city Rapid City
 - Total
 - Land
 - Water

2,784 sq mi (7,211 km²)
2,776 sq mi (7,190 km²)
8 sq mi (21 km²), 0.29%
 - (2000)
 - Density

13/sq mi (5/km²)
Time zone Mountain: UTC-7/-6

Pennington County is a county located in the U.S. state of South Dakota. As of 2000, the population was 88,565. Its county seat is at Rapid City6. Pennington County is the primary county for the Rapid City Metropolitan Statistical Area.


According to the U.S. Census Bureau, the county has a total area of 7,211 km² (2,784 sq mi). 7,190 km² (2,776 sq mi) of it is land and 21 km² (8 sq mi) of it (0.29%) is water. Harney Peak, South Dakota's highest mountain, is located in the county. At 7,242 feet it is the highest point between the Rocky Mountains and the French Alps.


The county is divided into twenty townships: Ash, Castle Butte, Cedar Butte, Conata, Crooked Creed, Fairview, Flat Butte, Huron, Imlay, Lake Creek, Lake Flat, Lake Hill, Owanka, Peno, Quinn, Rainy Creek/Cheyenne, Scenic, Shyne, Sunnyside, and Wasta; and seven areas of unorganized territory: Central Pennington, Dalzell Canyon, East Central Pennington, Mount Rushmore, Northeast Pennington, Rapid City East, and West Pennington.

Major HighwaysEdit

Adjacent Counties Edit


Historical populations
Census Pop.
1900 5,610
1910 12,453 122.0%
1920 12,720 2.1%
1930 20,079 57.9%
1940 23,799 18.5%
1950 34,053 43.1%
1960 58,195 70.9%
1970 59,349 2.0%
1980 70,361 18.6%
1990 81,343 15.6%
2000 88,565 8.9%
Est. 2006 94,338 6.5%

As of the census² of 2000, there were 88,565 people, 34,641 households, and 23,278 families residing in the county. The population density was 12/km² (32/sq mi). There were 37,249 housing units at an average density of 5/km² (13/sq mi). The racial makeup of the county was 86.70% White, 0.85% Black or African American, 8.09% Native American, 0.88% Asian, 0.06% Pacific Islander, 0.68% from other races, and 2.74% from two or more races. 2.64% of the population were Hispanic or Latino of any race.

There were 34,641 households out of which 33.50% had children under the age of 18 living with them, 51.30% were married couples living together, 11.70% had a female householder with no husband present, and 32.80% were non-families. 26.10% of all households were made up of individuals and 8.40% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.00.

In the county, the population was spread out with 26.60% under the age of 18, 10.50% from 18 to 24, 29.20% from 25 to 44, 21.90% from 45 to 64, and 11.80% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 98.30 males. For every 100 females age 18 and over, there were 95.70 males.

Search and RescueEdit

The Pennington County Search and Rescue (PCSAR) team is a volunteer search and rescue (SAR) team based in Rapid City, South Dakota. The team was established in October, 1973, prompted by a 1972 flood in Rapid City. PCSAR trains for and performs vehicle extrication, vertical rescue, searches, communication support, Fire Department and dive team air supply support, trench rescue, mass casualty support, and emergency winter weather transportation.

Cities and towns Edit

External linksEdit

Coordinates: 44°01′N 102°49′W / 44.01, -102.82

This page uses content from the English language Wikipedia. The original content was at Pennington County, South Dakota. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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