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South Dakota: county data, all 66 of them.

Every South Dakota county has a data page built from federal sources, each figure carrying its publisher and period. What this page does not carry is the South Dakota statutory framework, and the reason is below rather than hidden.

Counties
66
Population
907,428
Land area
75,811 sq mi
Establishments
28,739
Combined county GDP
$76.80 bn
SBA approvals recorded
2,239

Read this first

This is a county directory, not a state guide.

The county pages below are complete. They carry demographics, growth and migration, economic output, employment and wages, business establishments by industry, the construction pipeline, the SBA lending record including charge off rates, geography and hazard. Every figure names its publisher and the period it describes.

What is missing is the South Dakota legal and regulatory frame: how zoning and land development codes work in this state, what the entitlement path looks like, which agencies permit what, and which statutes override local codes. That material requires a research pack for South Dakota, and no such pack exists yet.

Why there is no state guide here

You cannot write South Dakota zoning law from a population table. Everything on the county pages is derived from federal datasets that cover all counties equally; statutory analysis is not, and generating it anyway would produce confident text about the law that nothing behind it supports.

Florida and California have research packs and therefore have full state guides. The remaining eight, including this one, do not. That is stated rather than papered over.

Counties

All 66 South Dakota county-equivalents.

South Dakota counties: population, income, establishments and SBA activity
GeographyPopulationMedian incomeEstablishmentsCounty GDPSBA approvalsLand area, sq mi
Aurora County2,642$72,88578$155.8 m4708
Beadle County19,309$67,681573$1.24 bn211,259
Bennett County3,345$53,75060$142.7 mNone recorded1,185
Bon Homme County7,044$64,435176$284.4 m6564
Brookings County35,353$70,064958$3.06 bn74792
Brown County37,877$70,8981,245$3.16 bn561,713
Brule County5,283$73,720222$335.7 m4817
Buffalo County1,808$47,04511$95.5 mNone recorded471
Butte County10,676$75,652380$474.8 m232,250
Campbell County1,593$68,92956$103.5 m1734
Charles Mix County9,281$64,038299$599.6 m71,097
Clark County3,917$70,726125$337.4 m3958
Clay County15,219$56,850298$877.1 m25412
Codington County28,767$72,7271,210$2.11 bn90688
Corson County3,806$46,40639$121.1 m32,470
Custer County8,892$84,112327$397.6 m331,557
Davison County19,952$66,208727$1.72 bn33436
Day County5,437$66,033226$380.7 m41,028
Deuel County4,328$83,112143$553.0 m9623
Dewey County5,205$54,104103$270.6 m12,302
Douglas County2,828$86,442101$269.0 m5432
Edmunds County4,048$81,630116$257.3 mNone recorded1,126
Fall River County7,258$67,917209$372.0 m131,740
Faulk County2,126$57,75064$169.3 m2982
Grant County7,563$75,028284$831.0 m13681
Gregory County4,016$62,917180$237.7 m21,015
Haakon County1,722$65,62582$132.8 m31,811
Hamlin County6,373$87,101213$424.8 m14507
Hand County3,140$74,635135$282.4 m21,437
Hanson County3,472$81,07190$217.2 m2435
Harding County1,148$80,44143$90.7 m12,671
Hughes County17,664$81,395632$1.66 bn40742
Hutchinson County7,404$73,977239$555.5 m12813
Hyde County1,191$73,47240$173.0 m4861
Jackson County2,802$35,41753$107.2 m11,864
Jerauld County1,772$73,75071$171.8 m2526
Jones County1,004$65,11943$85.5 m4970
Kingsbury County5,244$74,000188$370.0 m12832
Lake County10,972$76,808339$934.4 m15563
Lawrence County27,233$73,3841,248$1.85 bn121800
Lincoln County70,638$99,1662,184$8.82 bn268577
Lyman County3,724$67,14387$194.3 m21,642
Marshall County4,344$78,156140$453.8 m5838
McCook County5,751$83,852184$406.2 m19574
McPherson County2,145$66,90673$141.0 mNone recorded1,137
Meade County30,546$74,790805$1.30 bn693,471
Mellette County1,943$54,07621$71.1 m11,307
Miner County2,300$76,14073$176.7 m2570
Minnehaha County203,289$76,8806,262$22.45 bn723807
Moody County6,397$78,427158$485.8 m8519
Oglala Lakota County13,491$41,41784$432.7 mNone recorded2,094
Pennington County113,512$74,5174,137$8.69 bn3372,777
Perkins County3,001$66,908113$175.6 m32,870
Potter County2,388$72,04597$149.2 m6861
Roberts County10,221$65,130231$563.0 m71,101
Sanborn County2,384$78,75058$157.6 m1569
Spink County6,219$70,139197$549.1 m121,504
Stanley County3,015$87,712119$186.1 m141,444
Sully County1,526$72,57867$108.4 mNone recorded1,007
Todd County9,244$42,07559$312.8 mNone recorded1,389
Tripp County5,611$58,987200$353.2 m11,612
Turner County8,882$75,771261$612.7 m17617
Union County17,081$89,636555$2.26 bn46461
Walworth County5,271$65,026210$319.3 m4709
Yankton County23,414$72,821707$1.76 bn29521
Ziebach County2,377$53,95831$56.1 mNone recorded1,961

The register

Every source behind these 66 pages.

SourcePeriod coveredLicence
US Census Bureau, American Community Survey 5-Year Estimates2020-2024 5-yearUS Census Bureau, public domain
US Census Bureau, Population Estimates Program, Vintage 2024Vintage 2024, estimates 2020 to 2024US Census Bureau, public domain
US Bureau of Economic Analysis, Regional, table CAGDP2CAGDP2, through 2024US Bureau of Economic Analysis, public domain
US EPA, Map of Radon Zones, county spreadsheet2024-05 publication, EPA 402/A-16/001US EPA, public domain
FEMA OpenFEMA, NFIP Community Status BookCommunity Status Book, as retrievedFEMA OpenFEMA, public domain
US Small Business Administration, 7(a) FOIA releaseFY2020 to FY2026 year to date, as of 2026-06-30FOIA release, public domain
US Small Business Administration, 504 FOIA releaseFY2010 to FY2026 year to date, as of 2026-06-30FOIA release, public domain
US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary verticesTIGER county boundariesUS Census Bureau, public domain
US Census Bureau, County Business Patterns2023US Census Bureau, public domain
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages2024 annual averagesUS BLS, public domain
US Census Bureau, Building Permits Survey2024 annualUS Census Bureau, public domain
US Internal Revenue Service, Statistics of Income county migration flows2021 to 2022 filing yearsIRS SOI, public domain

How a county page is built →