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

  1. South Dakota Golf Association

    EIN 460310847 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. South Dakota Golf Course Superintendents Association

    EIN 460387157 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. South Dakota Grain & Feed Association

    EIN 460132910 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  4. South Dakota Guardianship Program Inc

    EIN 460366602 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. South Dakota Gun Owners

    EIN 272063425 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. South Dakota Health Care Association

    EIN 460272951 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. South Dakota Healthcare Social Work Association

    EIN 271417763 · Headquarters: Dallas, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  8. South Dakota Hereford Association

    EIN 460229985 · Headquarters: WILLOW LAKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. South Dakota High School Coaches Assn

    EIN 237297479 · Headquarters: Mitchell, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. South Dakota High School Rodeo Association

    EIN 460374473 · Headquarters: Reva, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. South Dakota Higher Education Association

    EIN 460424776 · Headquarters: Bruce, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. South Dakota Highway Patrol Assn

    EIN 460376168 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  13. South Dakota Home Builders Association

    EIN 460355151 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. South Dakota Horsemans Association

    EIN 363367700 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. South Dakota Hotel & Lodging Association

    EIN 460310469 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. South Dakota I F Y E Association

    EIN 460398305 · Headquarters: Iroquois, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. South Dakota Infection Control Council

    EIN 363281505 · Headquarters: BRITTON, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  18. South Dakota Insurance Guaranty

    EIN 466035349 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. South Dakota Investment Society

    EIN 460357043 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. South Dakota Ironsmiths and Welders Association

    EIN 371609805 · Headquarters: WHITE LAKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. South Dakota Junior Football Inc

    EIN 466037091 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. South Dakota Land Improvement Contractors Association

    EIN 460354789 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  23. South Dakota Library Association

    EIN 237038623 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. South Dakota Life and Health Insurance Guaranty Association

    EIN 460418983 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. South Dakota Lodge of Masoni Research

    EIN 460374446 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. South Dakota Manufactured Housing Association

    EIN 460325594 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. South Dakota Medical Records Association

    EIN 460341959 · Headquarters: Canistota, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. South Dakota Mines Center for Alumni Relations Advancement

    EIN 466011771 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. South Dakota Multi-housing Association

    EIN 460351589 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  30. South Dakota Municipal League

    EIN 466003523 · Headquarters: FT PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. South Dakota Municipal League Group Return

    EIN 460356156 · Headquarters: FT PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. South Dakota National Guard Enlisted Association

    EIN 237449956 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. South Dakota Network Against Family Violence and Sexual Assault Inc

    EIN 363792912 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. South Dakota Newspaper Association Dba South Dakota Newsmedia Association

    EIN 460191836 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. South Dakota Nonprofit Network

    EIN 861272487 · Headquarters: Fort Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. South Dakota Nurserymens Association

    EIN 460365387 · Headquarters: Brandon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. South Dakota Nurses' Association

    EIN 460229846 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. South Dakota Occupational Therapy Association Inc

    EIN 363160856 · Headquarters: VALLEY SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. South Dakota Old Time Fiddlers Association Inc

    EIN 593793208 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. South Dakota Optometric Society

    EIN 466040533 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. South Dakota Ornithologists Union

    EIN 466013509 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. South Dakota Parent Connection

    EIN 460385808 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. South Dakota Parks and Recreation Association

    EIN 363912265 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. South Dakota Parks and Wildlife Foundation

    EIN 460387968 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. South Dakota Peace Officers Assoc

    EIN 460211937 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. South Dakota Petroleum Marketers As

    EIN 460191795 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. South Dakota Pharmacists Association

    EIN 460191834 · Headquarters: Pierre, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. South Dakota Planners Association

    EIN 460410357 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. South Dakota Pork Producers Council

    EIN 460309257 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. South Dakota Premier Softball

    EIN 831537808 · Headquarters: WENTWORTH, SD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  51. South Dakota Professional Photographers Assoc

    EIN 460414516 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. South Dakota Public Health Association

    EIN 364810785 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. South Dakota Pulse Growers Inc

    EIN 460425493 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. South Dakota Racquetball Association

    EIN 263075165 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. South Dakota Ready Mix Concrete Association

    EIN 237080888 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. South Dakota Retailers Association

    EIN 460181800 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. South Dakota Retired School Personnel

    EIN 460379362 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. South Dakota Rifle Series

    EIN 332435823 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. South Dakota Right to Life Committee Educational Fund

    EIN 460367005 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. South Dakota Rodeo Association

    EIN 460382897 · Headquarters: Beresford, South Dakota, United States · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. South Dakota Rural Electric Association

    EIN 460231254 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. South Dakota Rural Electric Line Superintendents Association

    EIN 460348116 · Headquarters: Gregory, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. South Dakota Safety Council Inc

    EIN 460224601 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. South Dakota Section Society for Range Management

    EIN 237448551 · Headquarters: MITCHELL, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. South Dakota Short Term Rental Association

    EIN 931913861 · Headquarters: Britton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. South Dakota Sigma Chapter House Association

    EIN 510175932 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. South Dakota Snowmobile Association

    EIN 460339924 · Headquarters: Gary, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. South Dakota Society for Respiratory Care

    EIN 460429966 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. South Dakota Society of Anestesiolo

    EIN 460448728 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. South Dakota Society of Fire Service Instructors

    EIN 460428174 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. South Dakota Society of Health-system Pharmacists

    EIN 460339056 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. South Dakota Society of Orthodontists

    EIN 460349616 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. South Dakota Solid Waste Management

    EIN 460418541 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. South Dakota Soybean Association

    EIN 460373309 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. South Dakota Speech Language & Hearing Association

    EIN 460344604 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. South Dakota Staff Organization

    EIN 521627593 · Headquarters: PIERRE, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. South Dakota State Employees Organization

    EIN 460320458 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. South Dakota State Federation of Labor

    EIN 460191753 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. South Dakota State Medical Association

    EIN 460213945 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. South Dakota State Medical Association Foundation

    EIN 466012680 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. South Dakota State Poetry Society

    EIN 237420414 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. South Dakota States Attorneys Assoc

    EIN 460385805 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. South Dakota Stockgrowers Assoc

    EIN 460228590 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. South Dakota Technology Education Association

    EIN 384331339 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. South Dakota Telecommunications Association

    EIN 460319642 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. South Dakota Theta Alumni Associati On

    EIN 395030891 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. South Dakota Theta House Corporation

    EIN 460342550 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. South Dakota Trial Lawyers Associat

    EIN 460379430 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. South Dakota Trucking Association

    EIN 460106900 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. South Dakota Urban Indian Health Inc

    EIN 460348571 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  91. South Dakota Used Car Dealers Association Inc

    EIN 460443298 · Headquarters: TEA, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. South Dakota Veterans Cemeteries Support Council

    EIN 460404050 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. South Dakota Veterinary Medical Association

    EIN 460357085 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. South Dakota Voices for Justice

    EIN 824080637 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. South Dakota Voices for Peace

    EIN 823171574 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. South Dakota Voters First

    EIN 921140080 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. South Dakota Well Drillers

    EIN 466017107 · Headquarters: OACOMA, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. South Dakota Wheat Growers Association

    EIN 460313309 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  99. South Dakota Wildland Fire Employee Association

    EIN 464588426 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. South Dakota Wit Travelers Club

    EIN 300549271 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

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