Skip to the page

Data / Nonprofits / South Dakota

Nonprofits in South Dakota: 7,469 registered with the IRS

7,469 nonprofits are registered with the IRS in South Dakota, 5,481 of them 501(c)(3) charities; the 2,222 that report revenue took in $18.92 billion. The most are in Sioux Falls (1,393), Rapid City (733), Aberdeen (244). The largest by revenue: Sanford ($6.11 billion), Avera McKennan ($1.86 billion), Monument Health Rapid City Hospital Inc ($1.09 billion).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

By cause

By city

The 100 largest by revenue

OrganizationCityCategoryTypeSinceRevenueAssetsFiling
SanfordSioux Falls501(c)(3)2011$6.11 billion$4.27 billion2024-12
Avera McKennanSioux FallsHealth care501(c)(3)1942$1.86 billion$2.09 billion2025-06
Monument Health Rapid City Hospital IncRapid CityHealth care501(c)(3)1974$1.09 billion$1.48 billion2025-06
Signatry Charitable TrustSioux FallsPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2019$1.04 billion$816.2 million2024-12
The Evangelical Lutheran Good Samaritan SocietySioux FallsHuman services501(c)(3)1955$1.01 billion$970.4 million2024-12
Margot and Tom Pritzker Science FoundationSioux FallsPhilanthropy, voluntarism and grantmaking foundations501(c)(4)2024$423.3 million$449.6 million2024-12
East River Electric Power Cooperative IncMadison501(c)(12)1957$371.4 million$1.02 billion2024-12
Avera HealthSioux FallsHealth care501(c)(3)1993$359.1 million$2.58 billion2025-06
Avera Health Plans IncSioux FallsHealth care501(c)(4)2016$307.1 million$97.1 million2024-12
Monument Health Network IncRapid CityHealth care501(c)(3)1981$221.1 million$180.6 million2025-06
Sanford Health FoundationSioux FallsPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1997$214.4 million$1.28 billion2024-12
Prairie Lakes Health Care System IncWatertownHealth care501(c)(3)1987$202.9 million$461.7 million2025-05
Avera St LukesAberdeenHealth care501(c)(3)1943$194.4 million$153.2 million2025-06
Sacred Heart Health ServicesYanktonHealth care501(c)(3)1946$182.2 million$475.8 million2025-06
Avera Queen of PeaceMitchellHealth care501(c)(3)1946$159.9 million$223.1 million2025-06
Great Plains Tribal Leaders Health BoardRapid CityMental health and crisis intervention501(c)(3)1993$159.1 million$264.6 million2025-09
Augustana University AssociationSioux FallsEducation501(c)(3)1950$140.9 million$365.4 million2025-07
Avera St MarysPierreHealth care501(c)(3)1946$133.9 million$101.1 million2025-06
Delta Dental of South DakotaPierre501(c)(4)1969$118 million$51.8 million2025-12
Native American Heritage AssociationBlack HawkCrime and legal-related501(c)(3)1991$108.3 million$38.1 million2025-08
Sioux Valley-Southwestern Electric Cooperative IncColman501(c)(12)1941$108.1 million$384.7 million2024-12
Southeastern Electric Cooperative IncLennoxMutual and membership benefit501(c)(12)2000$96 million$274.3 million2025-12
Avera at HomeSioux FallsHealth care501(c)(3)1992$88.2 million$72.8 million2025-06
South Dakota State University FoundationBrookingsEducation501(c)(3)1947$73.3 million$411.9 million2024-12
Childrens Care Hospital & SchoolSioux Falls501(c)(3)1956$73.2 million$75.4 million2025-06
Rural Health Care IncFort Pierre501(c)(3)1987$68.9 million$32.9 million2025-09
Lewis and Clark Rural Water System IncTeaPublic and societal benefit501(c)(4)1991$67.9 million$622.4 million2025-09
South Dakota Community FoundationPierrePhilanthropy, voluntarism and grantmaking foundations501(c)(3)1988$60.1 million$939.2 million2024-12
Huron Regional Medical Center IncHuronHealth care501(c)(3)1978$57.2 million$112 million2025-06
West River Electric Association IncWall501(c)(12)1941$51.6 million$183.4 million2025-12
Sioux Falls Area Community Foundation IncSioux FallsPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2001$50.6 million$390.9 million2025-06
Black Hills Works IncRapid CityEmployment501(c)(3)1978$50.1 million$25.2 million2025-06
South Dakota AchieveSioux FallsHuman services501(c)(3)1970$46.6 million$30.6 million2025-06
Oglala Lakota CollegeKyleEducation501(c)(3)1971$44.3 million$154.1 million2025-09
Central Electric Cooperative IncMitchellFood, agriculture and nutrition501(c)(12)2001$42.4 million$136.4 million2025-12
University of Sioux FallsSioux FallsEducation501(c)(3)1950$39.5 million$96.1 million2025-06
Oglala Lakota Housing AuthorityPine RidgeHousing and shelter501(c)(3)2024$38.3 million$81.5 million2023-12
University of South Dakota FoundationVermillionEducation501(c)(3)1967$38.2 million$367.5 million2024-12
Madison Community HospitalMadisonHealth care501(c)(3)1937$38 million$59.7 million2025-06
Mount Marty UniversityYanktonEducation501(c)(3)1946$37.9 million$79.2 million2025-06
St Benedict Health CenterParkstonHealth care501(c)(3)1946$37.6 million$107.3 million2025-06
Childrens Home Society of South DakotaSioux FallsHuman services501(c)(3)1944$36.1 million$58.9 million2025-06
SanfordSioux FallsHealth care501(c)(3)2011$35.2 million$792.7 million2024-12
Horizon Health Care IncHowardHealth care501(c)(3)1978$34.3 million$25.7 million2024-12
Association of Hutterian Brethren Churches IncAberdeen501(c)(3)1983$34.3 million$31.7 million2026-04
Mobridge Regional HospitalMobridgeHealth care501(c)(3)1959$33.7 million$68.1 million2025-09
Northern Electric Cooperative IncorporatedBath501(c)(12)1947$33.6 million$123.8 million2025-12
Fall River Health ServicesHot SpringsHealth care501(c)(3)1999$33.1 million$40.8 million2024-12
Dakota Wesleyan UniversityMitchellEducation501(c)(3)1951$32.5 million$89.2 million2025-05
Feeding South DakotaSioux FallsFood, agriculture and nutrition501(c)(3)1984$32.2 million$22.9 million2025-06
Presbyterian Retirement Village of Rapid City IncRapid City501(c)(3)1980$31.1 million$158.7 million2025-09
Hegg Memorial HospitalSioux FallsHealth care501(c)(3)1973$30.4 million$60.4 million2025-06
Oahe Electric Cooperative IncBlunt501(c)(12)1953$30 million$42.8 million2024-12
SDSM&T Center for Alumni Relations & AdvancementRapid CityEducation501(c)(3)1959$29.3 million$176.2 million2025-06
Dakota Energy Cooperative IncHuron501(c)(12)1995$28.2 million$68.1 million2025-12
Winner Regional Healthcare CenterWinnerHealth care501(c)(3)1961$27.9 million$27.6 million2024-12
Lutheran Social Services of South DakotaSioux Falls501(c)(3)1963$27.2 million$19.9 million2025-06
Black Hills Electric Cooperative IncCuster501(c)(12)1955$26.7 million$83.4 million2025-12
Dow Rummel VillageSioux FallsHuman services501(c)(3)1968$26.2 million$71.7 million2025-04
Black Hills Area Community FoundationRapid CityPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1989$25.9 million$95.1 million2025-12
Coteau Des Prairies HospitalSissetonHealth care501(c)(3)1967$23.9 million$22.3 million2024-12
Little Wound School Board IncKyleEducation501(c)(3)1976$23.4 million$22.4 million2025-06
DakotabilitiesSioux FallsHuman services501(c)(3)1970$22.8 million$27.5 million2025-06
Platte Community Memorial Hospital IncPlatteHealth care501(c)(3)1958$22.7 million$40 million2025-06
Lifescape FoundationSioux FallsHealth care501(c)(3)1979$22.6 million$155.2 million2025-06
Wagner Community Memorial HospitalWagnerHealth care501(c)(3)1959$22.5 million$24.4 million2025-06
Four Bands Community Fund IncEagle ButteCommunity improvement and capacity building501(c)(3)2000$20.5 million$57.2 million2025-12
Lake Region Electric Association IncWebster501(c)(12)1965$20.5 million$56.1 million2025-12
Web Water Development Assoc IncAberdeen501(c)(12)1979$20.2 million$239.4 million2025-09
Black Hills State University FoundationSpearfishEducation501(c)(3)1975$19.9 million$50.7 million2024-12
Bethany Lutheran HomeSioux FallsHealth care501(c)(3)1952$19.9 million$31.4 million2025-06
South Dakota Bankers Benefit Plan TrustPierreMutual and membership benefit501(c)(9)2016$19.8 million$15.7 million2024-12
West Central Electric Cooperative IncorporatedMurdo501(c)(12)1953$19.6 million$59.1 million2025-12
Huron Area Center for IndependenceHuronEmployment501(c)(3)1976$19.5 million$23.4 million2025-06
Freeman Regional Health ServicesFreemanHealth care501(c)(3)1966$19.4 million$25.7 million2024-12
Lewis & Clark Behavioral Health Services IncYanktonMental health and crisis intervention501(c)(3)1973$19.2 million$40.4 million2025-06
Mid-Dakota Rural Water System IncMiller501(c)(12)1988$18.8 million$155.8 million2025-12
Fem Electric Association IncIpswich501(c)(12)1951$18.7 million$51.1 million2025-12
Southeastern Behavioral HealthcareSioux FallsMental health and crisis intervention501(c)(3)1953$18.7 million$12.6 million2025-06
Philip Health Services IncPhilipHealth care501(c)(3)1981$18.5 million$25.3 million2025-12
Codington-Clark Electric Cooperative IncWatertown501(c)(12)1949$17.9 million$63.5 million2025-12
Sioux Falls Christian Schools AssociationSioux FallsEducation501(c)(3)1978$17.8 million$44.2 million2025-07
F-M Ambulance Service IncSioux FallsHealth care501(c)(4)2003$17.7 million$9.8 million2024-12
H-D Electric Cooperative IncClear Lake501(c)(12)1949$17.6 million$52.4 million2025-12
Lacreek Electric Association IncMartin501(c)(12)1958$17.5 million$69.8 million2025-12
Cherry-Todd Electric Cooperative IncMission501(c)(12)1953$17.4 million$58.7 million2025-12
Human Service AgencyWatertownHuman services501(c)(3)1962$17.4 million$20.3 million2025-06
Sicangu Oyate Ho IncSaint FrancisEducation501(c)(3)2017$17 million$37 million2025-06
St Michaels HospitalTyndall501(c)(3)1946$17 million$28.4 million2025-06
Childrens Home FoundationSioux FallsHuman services501(c)(3)1982$16.7 million$179.1 million2025-06
Avera GettysburgGettysburgHealth care501(c)(3)1979$16.6 million$47.1 million2025-06
Sanford Underground Research Facility FoundationLeadPublic and societal benefit501(c)(3)2020$16.6 million$15.6 million2025-06
Behavior Management Systems IncRapid City501(c)(3)1965$16.4 million$12 million2025-06
Inter-Lakes Community Action Partnership IncMadisonHuman services501(c)(3)1967$16.3 million$15.6 million2025-09
Sioux Falls Zoo & AquariumSioux FallsAnimal-related501(c)(3)1958$16.1 million$37.3 million2025-12
Cedar Lake Village IncSioux FallsHousing and shelter501(c)(3)1999$15.9 million$32.3 million2024-12
Rural Office of Community ServicesWagner501(c)(3)1982$15.9 million$4.3 million2024-09
LifequestMitchellHuman services501(c)(3)1978$15.7 million$10.7 million2025-06
Washington Pavilion Management IncSioux FallsArts, culture and humanities501(c)(3)1996$15.4 million$19.4 million2025-06
Youth & Family Services IncRapid City501(c)(3)1966$15.4 million$18.9 million2025-06

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.