Unknown & Unclassified nonprofits in South Dakota
Unknown & Unclassified nonprofits in South Dakota. Browse 2,816 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- South Dakota Woodcarvers Inc
EIN 412226269 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- South Dakota Woodworkers Guild
EIN 261529083 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- South Dakota Youth Soccer Association Inc
EIN 237183054 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- South Dakota's Missouri River Tourism
EIN 460282809 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- South Dakotans Against the Deceptive Rx Ballot Issue
EIN 823403467 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990
- South Dakotans Decide Healthcare
EIN 862041240 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- South Dakotans for a Secure Constitution
EIN 393698410 · Headquarters: Hartford, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- South Dakotans for Fair Elections
EIN 880583676 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- South Dakotans for Healthy Families
EIN 882383413 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- South Dakotans for Nebraska
EIN 272298855 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- South East South Dakota Atv Association
EIN 204689051 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- South Lincoln Rural Water System Inc
EIN 460338181 · Headquarters: Beresford, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Southeast District Dental Society C/o Andrew Boyd Dmd
EIN 460439368 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Southeast South Dakota Experiment Farm
EIN 466015079 · Headquarters: BERESFORD, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Southeast South Dakota Tourism
EIN 460397285 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Southern Hills Developmental Services Inc
EIN 460347868 · Headquarters: STURGIS, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Southern Hills Economic Development
EIN 454618382 · Headquarters: HOT SPRINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Southern Plains Behavioral Health Services
EIN 460315841 · Headquarters: WINNER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Southern Society of Clinical Surgeons Inc
EIN 541368770 · Headquarters: Mobridge, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spearfish Canyon Foundation
EIN 460411808 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spearfish Canyon Homeowners Association
EIN 460402519 · Headquarters: lead, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Spearfish Chamber of Commerce
EIN 466015498 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spearfish Cooperative Preschool
EIN 460308392 · Headquarters: SPEARFISH, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Spearfish Economic Development Corp
EIN 460358940 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spearfish Softball Association
EIN 481274892 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Spencer Development Corporation
EIN 237139531 · Headquarters: Spencer, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Spink County Leaders Association 4-H Affiliate of South Dakota
EIN 934398406 · Headquarters: Redfield, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Spirit of the Cats Foundation
EIN 814183927 · Headquarters: Big Stone City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Spirit of the Old West Foundation
EIN 270781967 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Spirithorse Therapeutic Riding Center
EIN 272056976 · Headquarters: Baltic, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Spiritoftruth4thdayers
EIN 472113367 · Headquarters: Brandon, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Split Rock Township Volunteer Fire Department
EIN 460372407 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sportsmans Club of Brown County
EIN 466024796 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Spring Hill Cemetery Association
EIN 237214270 · Headquarters: Gann Valley, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Springs Country Club
EIN 460306872 · Headquarters: WESSINGTON SPRINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Springs of Joy Incorporated
EIN 270694416 · Headquarters: BROOKINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Springs Senior Citizens Center
EIN 237448557 · Headquarters: HOT SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St Columbkills North Cemetery Association
EIN 460342454 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St Francis House of Sioux Falls
EIN 460423202 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- St Johns Cemetery North of Columbia
EIN 237350980 · Headquarters: Houghton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- St Lawrence Cemetery Association
EIN 466014120 · Headquarters: Miller, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St Michael's Hospital Inc
EIN 460225414 · Headquarters: TYNDALL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- St Onge Sewer and Water Company
EIN 460313963 · Headquarters: Saint Onge, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- St Patricks South Cemetery Association
EIN 460346889 · Headquarters: Volin, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St Paul Lutheran Cemetery
EIN 466013294 · Headquarters: HUMBOLDT, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- St Thomas Cemetery Assn Inc
EIN 460410522 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St Thomas School Foundation Inc
EIN 460387014 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- St William's Care Center
EIN 460250303 · Headquarters: MILBANK, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Stand Down
EIN 933670772 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Stanley Jones Trust
EIN 363399522 · Headquarters: PRESHO, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Star Performance Booster Club
EIN 452997261 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Starbase of South Dakota Inc
EIN 460443618 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- State Bar of South Dakota
EIN 460193830 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- State College Development Association
EIN 460235119 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Steve Kirby Foundation
EIN 363653497 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Stickney Community Development Comp
EIN 237397195 · Headquarters: STICKNEY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Stockberger Foundation
EIN 874256596 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Stordahl Lutheran Cemetery Association
EIN 272508909 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Storybook Island
EIN 460260003 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Storyteller Media Co
EIN 822715666 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Strong Schools Strong Communities
EIN 333121397 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sturgis Al-anon
EIN 320391458 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Sturgis Area Arts Council
EIN 460356634 · Headquarters: STURGIS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sturgis Bronco Rally Inc
EIN 991368273 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sturgis Chamber of Commerce
EIN 460210083 · Headquarters: Sturgis, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sturgis Economic Development Corp
EIN 460368509 · Headquarters: STURGIS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sturgis Mustang Rally Inc
EIN 611617537 · Headquarters: Sturgis, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Suanne Big Crow Memorial Foundation
EIN 460423326 · Headquarters: PINE RIDGE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sully 4H Archery 4H Affiliate of South Dakota
EIN 923471235 · Headquarters: AGAR, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Sun Dial Manor Foundation Inc
EIN 460420426 · Headquarters: Bristol, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sun Dial Manor Inc
EIN 466016762 · Headquarters: Bristol, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sunnycrest Village Foundation
EIN 460424929 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Sunset Memorial Gardens of Aberdeen Inc
EIN 460237975 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Superior History Association Inc
EIN 852207674 · Headquarters: Summit, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Suttons Bay Sportsmans Club Inc
EIN 273675968 · Headquarters: GETTYSBURG, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Swan Lake Improvement Association
EIN 460436097 · Headquarters: Elkton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sweet Adelines International
EIN 237348331 · Headquarters: Freeman, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Symposia on Environmental Biogeochemistry Inc
EIN 510223079 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- System Safety Society
EIN 510138958 · Headquarters: BRITTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tabernacle of the Lord Jesus
EIN 460339485 · Headquarters: brandon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tabor Area Chamber of Commerce Inc
EIN 460338654 · Headquarters: TABOR, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Tabor Development Corp Inc
EIN 202522091 · Headquarters: Tabor, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tabor Manor Inc
EIN 460308997 · Headquarters: TABOR, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Tau Beta Pi Association Inc
EIN 237359111 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tau Beta Pi Association Inc
EIN 237360423 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tea Historical Society
EIN 460459376 · Headquarters: Tea, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Team Ellsworth Spouses Club
EIN 510136760 · Headquarters: Ellsworth AFB, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Team Hope
EIN 352512953 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Team Wicked Softball
EIN 464729604 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Teapot Troopers 4-H Club of Lincoln County South Dakota
EIN 861615673 · Headquarters: Tea, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Teen Challenge of the Dakotas
EIN 460319355 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tekakwitha Nursing Center
EIN 411809912 · Headquarters: SISSETON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Teton Island Business Park Owners Association
EIN 823914584 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The American Legion Department of South Dakota
EIN 460105110 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Bandits
EIN 472090889 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- The Black Hills Chapter of the Military Officers Assoc of America
EIN 460343139 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Bridge
EIN 364780676 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- The Carroll Institute
EIN 460363475 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Dr Ken Throlson American Bison Foundation
EIN 841209568 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Glory House of Sioux Falls
EIN 460308425 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990