Business planning by county

South Dakota county reference

66 counties and county equivalents in South Dakota. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Aurora County

  South Dakota · FIPS 46003

  2,801 residents · 2025 estimate

• Beadle County

  South Dakota · FIPS 46005

  19,624 residents · 2025 estimate

• Bennett County

  South Dakota · FIPS 46007

  3,307 residents · 2025 estimate

• Bon Homme County

  South Dakota · FIPS 46009

  7,244 residents · 2025 estimate

• Brookings County

  South Dakota · FIPS 46011

  37,635 residents · 2025 estimate

• Brown County

  South Dakota · FIPS 46013

  37,561 residents · 2025 estimate

• Brule County

  South Dakota · FIPS 46015

  5,278 residents · 2025 estimate

• Buffalo County

  South Dakota · FIPS 46017

  1,802 residents · 2025 estimate

• Butte County

  South Dakota · FIPS 46019

  10,856 residents · 2025 estimate

• Campbell County

  South Dakota · FIPS 46021

  1,377 residents · 2025 estimate

• Charles Mix County

  South Dakota · FIPS 46023

  9,303 residents · 2025 estimate

• Clark County

  South Dakota · FIPS 46025

  4,031 residents · 2025 estimate

• Clay County

  South Dakota · FIPS 46027

  15,031 residents · 2025 estimate

• Codington County

  South Dakota · FIPS 46029

  29,562 residents · 2025 estimate

• Corson County

  South Dakota · FIPS 46031

  3,781 residents · 2025 estimate

• Custer County

  South Dakota · FIPS 46033

  9,431 residents · 2025 estimate

• Davison County

  South Dakota · FIPS 46035

  20,069 residents · 2025 estimate

• Day County

  South Dakota · FIPS 46037

  5,484 residents · 2025 estimate

• Deuel County

  South Dakota · FIPS 46039

  4,408 residents · 2025 estimate

• Dewey County

  South Dakota · FIPS 46041

  5,419 residents · 2025 estimate

• Douglas County

  South Dakota · FIPS 46043

  2,888 residents · 2025 estimate

• Edmunds County

  South Dakota · FIPS 46045

  4,022 residents · 2025 estimate

• Fall River County

  South Dakota · FIPS 46047

  7,467 residents · 2025 estimate

• Faulk County

  South Dakota · FIPS 46049

  2,178 residents · 2025 estimate

• Grant County

  South Dakota · FIPS 46051

  7,534 residents · 2025 estimate

• Gregory County

  South Dakota · FIPS 46053

  4,037 residents · 2025 estimate

• Haakon County

  South Dakota · FIPS 46055

  1,802 residents · 2025 estimate

• Hamlin County

  South Dakota · FIPS 46057

  6,900 residents · 2025 estimate

• Hand County

  South Dakota · FIPS 46059

  3,121 residents · 2025 estimate

• Hanson County

  South Dakota · FIPS 46061

  3,456 residents · 2025 estimate

• Harding County

  South Dakota · FIPS 46063

  1,331 residents · 2025 estimate

• Hughes County

  South Dakota · FIPS 46065

  17,570 residents · 2025 estimate

• Hutchinson County

  South Dakota · FIPS 46067

  7,413 residents · 2025 estimate

• Hyde County

  South Dakota · FIPS 46069

  1,191 residents · 2025 estimate

• Jackson County

  South Dakota · FIPS 46071

  2,666 residents · 2025 estimate

• Jerauld County

  South Dakota · FIPS 46073

  1,654 residents · 2025 estimate

• Jones County

  South Dakota · FIPS 46075

  913 residents · 2025 estimate

• Kingsbury County

  South Dakota · FIPS 46077

  5,284 residents · 2025 estimate

• Lake County

  South Dakota · FIPS 46079

  10,993 residents · 2025 estimate

• Lawrence County

  South Dakota · FIPS 46081

  29,459 residents · 2025 estimate

• Lincoln County

  South Dakota · FIPS 46083

  77,145 residents · 2025 estimate

• Lyman County

  South Dakota · FIPS 46085

  3,694 residents · 2025 estimate

• Marshall County

  South Dakota · FIPS 46091

  4,426 residents · 2025 estimate

• McCook County

  South Dakota · FIPS 46087

  5,964 residents · 2025 estimate

• McPherson County

  South Dakota · FIPS 46089

  2,347 residents · 2025 estimate

• Meade County

  South Dakota · FIPS 46093

  30,711 residents · 2025 estimate

• Mellette County

  South Dakota · FIPS 46095

  2,137 residents · 2025 estimate

• Miner County

  South Dakota · FIPS 46097

  2,281 residents · 2025 estimate

• Minnehaha County

  South Dakota · FIPS 46099

  212,691 residents · 2025 estimate

• Moody County

  South Dakota · FIPS 46101

  6,632 residents · 2025 estimate

• Oglala Lakota County

  South Dakota · FIPS 46102

  13,338 residents · 2025 estimate

• Pennington County

  South Dakota · FIPS 46103

  116,792 residents · 2025 estimate

• Perkins County

  South Dakota · FIPS 46105

  2,853 residents · 2025 estimate

• Potter County

  South Dakota · FIPS 46107

  2,377 residents · 2025 estimate

• Roberts County

  South Dakota · FIPS 46109

  10,255 residents · 2025 estimate

• Sanborn County

  South Dakota · FIPS 46111

  2,388 residents · 2025 estimate

• Spink County

  South Dakota · FIPS 46115

  6,155 residents · 2025 estimate

• Stanley County

  South Dakota · FIPS 46117

  3,018 residents · 2025 estimate

• Sully County

  South Dakota · FIPS 46119

  1,479 residents · 2025 estimate

• Todd County

  South Dakota · FIPS 46121

  8,863 residents · 2025 estimate

• Tripp County

  South Dakota · FIPS 46123

  5,708 residents · 2025 estimate

• Turner County

  South Dakota · FIPS 46125

  9,314 residents · 2025 estimate

• Union County

  South Dakota · FIPS 46127

  17,402 residents · 2025 estimate

• Walworth County

  South Dakota · FIPS 46129

  5,217 residents · 2025 estimate

• Yankton County

  South Dakota · FIPS 46135

  23,635 residents · 2025 estimate

• Ziebach County

  South Dakota · FIPS 46137

  2,389 residents · 2025 estimate

Use the county data

Use a county reference when organizing a market-research brief, outreach territory or business calculation. County population gives geographic context; it does not measure the number of qualified customers.

These are geographic reference records, not contact lists or verified sales leads.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.