Keystone Pennington County, South Dakota

Keystone: Town in Pennington County, South Dakota

About

Keystone is a town located in the county of Pennington in the U.S. state of South Dakota. Its population at the 2010 census was 337 and a population density of 45 people per km². After 10 years in 2020 city had an estimated population of 352 inhabitants.

The town was created 139 years ago in 1882.

Keystone Quick Facts

Population : 352 (2020)
Country : United States of America
State : South Dakota (United States)
County : Pennington County
Postal code : 57751
Phone Area Codes : 605
Area : 7.41 km2
Altitude : 4,331 feet / 1320 meters
Establishment : January 01, 1883 (139 years ago)
Time Zone : America/Denver
Local time : 03:27:27 (24th January 2022)
Density : 48 Pop. per km² as of 2020
Population growth : 4.26% (2010-2020)
Keystone locator map
Location of Keystone on South Dakota map.
Keystone South Dakota business district 3-3-2012 image
Keystone South Dakota business district 3-3-2012
Keystone South Dakota business district 3-3-2012 image

Geography

Keystone is located at 43°53'44"N 103°25'6"W (43.8955400, -103.4182500).

Keystone map

Demographics

The population of Keystone increased by 4.26% in 10 years.

Year Population % Change Method
2010 337 - census
2011 335 -0.6% estimation process
2012 340 1.47% estimation process
2013 341 0.29% estimation process
2014 341 0% estimation process
2015 340 -0.29% estimation process
2016 339 -0.29% estimation process
2017 339 0% estimation process
2018 340 0.29% estimation process
2019 343 0.87% estimation process
2020 352 2.56% estimation process

Keystone zip code is 57751. County name: Pennington, County fips: 46103

People born in Keystone (1)

United States Air Force officer C. D. Moore was born in Keystone

Schools in Keystone

College & universities near Keystone, SD

Code Name City ZIP
219204 National American University-Rapid City Rapid City (SD) 57701-2823
485290 National American University-Harold D. Buckingham Graduate School Rapid City (SD) 57701-2823
219037 The Salon Professional Academy Rapid City (SD) 57701
219125 Headlines Academy Inc Rapid City (SD) 57701
219347 South Dakota School of Mines and Technology Rapid City (SD) 57701-3995

Post offices near Keystone

Post Office Name City ZIP
Keyston Post Office Keystone (SD) 57751

Other places with the same name (4)

  • Keystone , Florida census-designated place in Hillsborough County, Florida with a population of 24,039 people.
  • Keystone , Iowa human settlement in Benton County, Iowa, United States of America with a population of 615 people.
  • Keystone , West Virginia city in McDowell County, West Virginia, United States of America with a population of 213 people.

Other cities in Pennington County

Cities, Towns, Neighborhoods & Other Populated Places in Pennington County , SD.

City Name Population Title
Rapid City 77,503 County seat of Pennington County, South Dakota, United States
Rapid Valley 8,260 Census-designated place in Pennington County, South Dakota
Box Elder 7,165 City in Pennington County, South Dakota, United States
Colonial Pine Hills 2,493 Township in Pennington County, South Dakota
Hill City 1,032 City in South Dakota, United States of America
Wall 885 City in Pennington County, South Dakota, United States
Ashland Heights 754 Township in Pennington County, South Dakota
New Underwood 679 Human settlement in Pennington County, South Dakota, United States of America
Scenic 64 Community in Pennington County, South Dakota, US
Green Valley 49 Township in Pennington County, South Dakota
Owanka 30 Township in Pennington County, South Dakota
Wasta 22 Township in Pennington County, South Dakota
Quinn 12 Town in South Dakota, United States of America