Nonprofits in South Dakota

Nonprofits in South Dakota. Browse 9,038 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. American Legion Post 11

    EIN 466006908 · Headquarters: BRIDGEWATER, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Legion Post 110 Watson Krauter

    EIN 466014717 · Headquarters: WESSINGTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Legion Post 146 Thayer Waters

    EIN 460310119 · Headquarters: COLOME, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. American Legion Post 15

    EIN 460162150 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. American Legion Post 169

    EIN 460167745 · Headquarters: WINNER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. American Legion Post 170

    EIN 466014648 · Headquarters: HERREID, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Legion Post 175

    EIN 466015361 · Headquarters: BALTIC, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Legion Post 187

    EIN 466019624 · Headquarters: FAIRFAX, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Legion Post 194

    EIN 466014551 · Headquarters: PARKSTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Legion Post 22

    EIN 460213269 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. American Legion Post 26

    EIN 460309735 · Headquarters: STICKNEY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Legion Post 28

    EIN 466014616 · Headquarters: BURKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Legion Post 311

    EIN 460452833 · Headquarters: PIEDMONT, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. American Legion Post 315 Inc

    EIN 450415991 · Headquarters: BOX ELDER, SD, USA · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990

  15. American Legion Post 33 Baseball Inc

    EIN 455531918 · Headquarters: STURGIS, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Legion Post 33 Meade County

    EIN 460221026 · Headquarters: Sturgis, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. American Legion Post 36

    EIN 466014817 · Headquarters: BONESTEEL, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Legion Post 38

    EIN 466008140 · Headquarters: MILLER, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Legion Post 39

    EIN 460311727 · Headquarters: Groton, SD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  20. American Legion Post 65

    EIN 466013050 · Headquarters: DELL RAPIDS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. American Legion Post 78 Roy S Hickman

    EIN 460270699 · Headquarters: LEOLA, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. American Legion Potter Post 3

    EIN 460276865 · Headquarters: CHAMBERLAIN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Legion Ruste-waul Post154

    EIN 471567787 · Headquarters: Montrose, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. American Legion Sidney L Smith Post 24

    EIN 460190558 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. American Legion Sn156 Engbretson Lien

    EIN 466014667 · Headquarters: Webster, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  26. American Legion Sn70 Kelley-porter

    EIN 466013261 · Headquarters: Flandreau, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. American Legion Sn72 Beresford

    EIN 466013037 · Headquarters: Beresford, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  28. American Legion Unit 20 Auxiliary

    EIN 813241555 · Headquarters: Fort Pierre, SD, US · Public & Societal Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  29. American Lutheran Church Endowment Inc

    EIN 460379824 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Nephrology Nurses Association

    EIN 371605675 · Headquarters: Bath, SD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  31. American Orff-schulwerk Association

    EIN 311348652 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Pharmacists Association Academy of Student Pharmacists

    EIN 466015377 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Planning Association

    EIN 830274716 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Postal Workers Accident Benefit Association

    EIN 237168989 · Headquarters: Aberdeen, SD, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. American Postal Workers Union

    EIN 237018938 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  36. American Postal Workers Union

    EIN 237343148 · Headquarters: WATERTOWN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. American Postal Workers Union

    EIN 237343150 · Headquarters: Huron, SD, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  38. American Postal Workers Union

    EIN 237343158 · Headquarters: Mitchell, SD, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. American Postal Workers Union

    EIN 460437214 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. American Postal Workers Union

    EIN 466015356 · Headquarters: SIOUX FALLS, SD, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  41. American Postal Workers Union - Mitchell Local

    EIN 452838393 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. AMERICAN POSTAL WORKERS UNION 718 Sioux Falls Area Local

    EIN 466014943 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. American Psychiatric Association

    EIN 460349135 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Rose Society

    EIN 274269225 · Headquarters: Hecla, SD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. American Society for Clinical Laboratory Science

    EIN 237080235 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. American Society for Clinical Laboratory Science-South Dakota

    EIN 466014986 · Headquarters: Brookings, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. American Society for Training and Development

    EIN 460389933 · Headquarters: Sioux Falls, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  48. American Society of Agricultural Engineers

    EIN 460458064 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Society of Heating Refrigerating & A-c Engineers

    EIN 460341898 · Headquarters: BLACK HAWK, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. American Society of Heating Refrigerating & A-c Engineers

    EIN 466038552 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. American Society of Radiologic Technologists

    EIN 264378406 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  52. American Society of Radiologic Technologists

    EIN 466020108 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American String Teachers Association Incorporated

    EIN 208450243 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Volkssport Association 274 Black Hills Vokssport Association

    EIN 460411015 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. American Volkssport Association Inc

    EIN 460403176 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Volkssport Association Inc

    EIN 460443339 · Headquarters: Pierre, SD, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  57. American Water Works Association

    EIN 237026166 · Headquarters: Pierre, SD, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Americas Story 250 Inc

    EIN 932577967 · Headquarters: SIOUX FALLS, SD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Amhara Community in Sioux Falls Sd

    EIN 880650248 · Headquarters: Sioux Falls, SD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Amiotte Charitable Trust

    EIN 272465936 · Headquarters: Black Hawk, SD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  61. Amo Cemetery Association

    EIN 416026002 · Headquarters: Marion, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Among Foundation

    EIN 460429069 · Headquarters: SIOUX FALLS, SD, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Amsat

    EIN 133402440 · Headquarters: Britton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Amvets Post 1

    EIN 922722894 · Headquarters: Milbank, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  65. Anchor'd Recovery Inc

    EIN 934209450 · Headquarters: MITCHELL, SD, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Anchoring to Hope

    EIN 813465529 · Headquarters: YANKTON, SD, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  67. Ancient & Accepted Scottish Rite Of

    EIN 460191692 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Ancient & Accepted Scottish Rite of Free Masonry So Juris of USA

    EIN 460154335 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ancient & Accepted Scottish Rite of Free Masonry Southern Jurisdiction

    EIN 460355837 · Headquarters: Yankton, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. Ancient & Accepted Scottish Rite of Valley of Its Deadwood Coord Bodies

    EIN 237148757 · Headquarters: Deadwood, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Ancient Arabic Order of the Nobles of the Mystic Shrine of Na

    EIN 237348066 · Headquarters: SIOUX FALLS, SD, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  72. Ancient Free & Accepted Mason of 7

    EIN 237264676 · Headquarters: Deadwood, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Ancient Free & Accepted Masons

    EIN 237276589 · Headquarters: Miller, SD, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  74. Ancient Free & Accepted Masons 124

    EIN 237266852 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ancient Free & Accepted Masons 66

    EIN 237264261 · Headquarters: CUSTER, SD, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Ancient Free & Accepted Masons Lodge 56 Chamberland Lodge

    EIN 237008064 · Headquarters: Reliance, SD, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  77. Ancient Free & Accepted Masons of S

    EIN 237266080 · Headquarters: VERMILLION, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Ancient Free & Accepted Masons of Sd 123 Hiram Lodge

    EIN 237276593 · Headquarters: Pierre, SD, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  79. Ancient Free & Accepted Masons of Sd 148 Burke Lodge

    EIN 237264471 · Headquarters: BURKE, SD, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  80. Ancient Free & Accepted Masons of Sd 173 Onida Lodge

    EIN 237268203 · Headquarters: Onida, SD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  81. Ancient Free & Accepted Masons of Sd 24 Brookings Lodge Masonic Temp

    EIN 460105290 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Ancient Free & Accepted Masons of Sd 25 Rapid City Lodge

    EIN 460280147 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  83. Ancient Free & Accepted Masons of Sd 62 Lily Lodge

    EIN 237299423 · Headquarters: Blunt, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. Ancient Free & Accepted Masons of South Dakota

    EIN 237264665 · Headquarters: Hot Springs, SD, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  85. Ancient Free & Accepted Masons of South Dakota

    EIN 237264666 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Ancient Free & Accepted Masons of South Dakota

    EIN 237264897 · Headquarters: Sisseton, SD, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  87. Ancient Free & Accepted Masons of South Dakota

    EIN 237264906 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Ancient Free & Accepted Masons of South Dakota

    EIN 237268183 · Headquarters: Bridgewater, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Ancient Free & Accepted Masons of South Dakota

    EIN 264528641 · Headquarters: Hermosa, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Ancient Free & Accepted Masons of South Dakota

    EIN 460104012 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Ancient Free & Accepted Masons of South Dakota 101 Bon Homme Lodg

    EIN 237264255 · Headquarters: Tyndall, SD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  92. Ancient Free & Accepted Masons of South Dakota 107 Wessington

    EIN 237280500 · Headquarters: Wessington, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Ancient Free & Accepted Masons of South Dakota 11 Flandreau Lodge

    EIN 237264675 · Headquarters: Flandreau, SD, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. Ancient Free & Accepted Masons of South Dakota 112 Tin City Lodge

    EIN 460317780 · Headquarters: Hill City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Ancient Free & Accepted Masons of South Dakota 116 Tinta Lodge

    EIN 237090311 · Headquarters: LANGFORD, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Ancient Free & Accepted Masons of South Dakota 120 Joppa Lodge

    EIN 237264252 · Headquarters: HURLEY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ancient Free & Accepted Masons of South Dakota 13 Concord Lodge

    EIN 460355835 · Headquarters: WATERTOWN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Ancient Free & Accepted Masons of South Dakota 130 Unity Lodge

    EIN 460105294 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Ancient Free & Accepted Masons of South Dakota 136 Hartford Lodge

    EIN 237266359 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. Ancient Free & Accepted Masons of South Dakota 139 Alpha

    EIN 237641501 · Headquarters: Wagner, SD, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

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