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 Auxiliary

    EIN 237450243 · Headquarters: Huron, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  2. American Legion Auxiliary

    EIN 271334869 · Headquarters: Wall, SD, US · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  3. American Legion Auxiliary

    EIN 272023004 · Headquarters: Toronto, SD, US · Public & Societal Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. American Legion Auxiliary

    EIN 300533330 · Headquarters: BRENTFORD, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Legion Auxiliary

    EIN 320118472 · Headquarters: Smithwick, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  6. American Legion Auxiliary

    EIN 363523946 · Headquarters: Bowdle, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  7. American Legion Auxiliary

    EIN 364701992 · Headquarters: Ralph, SD, US · Public & Societal Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  8. American Legion Auxiliary

    EIN 450121870 · Headquarters: Humboldt, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  9. American Legion Auxiliary

    EIN 460105102 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. American Legion Auxiliary

    EIN 460277543 · Headquarters: ROSCOE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Legion Auxiliary

    EIN 460278037 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Legion Auxiliary

    EIN 460311924 · Headquarters: WINNER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. American Legion Auxiliary

    EIN 460324156 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. American Legion Auxiliary

    EIN 460357189 · Headquarters: Canton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Legion Auxiliary

    EIN 460357196 · Headquarters: NORTHVILLE, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  16. American Legion Auxiliary

    EIN 460357347 · Headquarters: Chancellor, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. American Legion Auxiliary

    EIN 460365656 · Headquarters: Eagle Butte, SD, US · Public & Societal Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  18. American Legion Auxiliary

    EIN 460372951 · Headquarters: Kennebec, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Legion Auxiliary

    EIN 460373135 · Headquarters: Groton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. American Legion Auxiliary

    EIN 460373243 · Headquarters: Faulkton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Legion Auxiliary

    EIN 460373327 · Headquarters: Wentworth, SD, US · Public & Societal Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. American Legion Auxiliary

    EIN 460373864 · Headquarters: Renner, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  23. American Legion Auxiliary

    EIN 460374303 · Headquarters: MADISON, SD, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Legion Auxiliary

    EIN 460374405 · Headquarters: Mount Vernon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Legion Auxiliary

    EIN 460374770 · Headquarters: Zell, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  26. American Legion Auxiliary

    EIN 460382634 · Headquarters: Faulkton, SD, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  27. American Legion Auxiliary

    EIN 460382904 · Headquarters: Hurley, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Legion Auxiliary

    EIN 460396811 · Headquarters: Emery, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. American Legion Auxiliary

    EIN 460407770 · Headquarters: VIVIAN, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Legion Auxiliary

    EIN 460425927 · Headquarters: Gann Valley, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Legion Auxiliary

    EIN 460444851 · Headquarters: Wilmot, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. American Legion Auxiliary

    EIN 466006915 · Headquarters: Mitchell, SD, US · Public & Societal Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  33. American Legion Auxiliary

    EIN 466012064 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Legion Auxiliary

    EIN 466012096 · Headquarters: Huron, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  35. American Legion Auxiliary

    EIN 466012268 · Headquarters: Presho, SD, US · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  36. American Legion Auxiliary

    EIN 466012475 · Headquarters: Ipswich, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  37. American Legion Auxiliary

    EIN 466012604 · Headquarters: Beresford, SD, US · Public & Societal Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  38. American Legion Auxiliary

    EIN 466013029 · Headquarters: Hot Springs, SD, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  39. American Legion Auxiliary

    EIN 466013065 · Headquarters: GETTYSBURG, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American Legion Auxiliary

    EIN 466013109 · Headquarters: WATERTOWN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Legion Auxiliary

    EIN 466013417 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Legion Auxiliary

    EIN 466013516 · Headquarters: Clark, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. American Legion Auxiliary

    EIN 466013545 · Headquarters: Volin, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Legion Auxiliary

    EIN 466013549 · Headquarters: Parkston, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. American Legion Auxiliary

    EIN 466014054 · Headquarters: Trent, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Legion Auxiliary

    EIN 466014605 · Headquarters: Artesain, SD, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. American Legion Auxiliary

    EIN 466014607 · Headquarters: BALTIC, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. American Legion Auxiliary

    EIN 466014608 · Headquarters: Blunt, SD, US · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. American Legion Auxiliary

    EIN 466014609 · Headquarters: Eureka, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  50. American Legion Auxiliary

    EIN 466014610 · Headquarters: Bradley, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. American Legion Auxiliary

    EIN 466014617 · Headquarters: Canova, SD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  52. American Legion Auxiliary

    EIN 466014619 · Headquarters: CONDE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Legion Auxiliary

    EIN 466014622 · Headquarters: Dell Rapids, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. American Legion Auxiliary

    EIN 466014625 · Headquarters: DOLAND, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Legion Auxiliary

    EIN 466014633 · Headquarters: Elkton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Legion Auxiliary

    EIN 466014635 · Headquarters: New Effington, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Legion Auxiliary

    EIN 466014640 · Headquarters: GARDEN CITY, SD, US · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. American Legion Auxiliary

    EIN 466014641 · Headquarters: Geddes, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Legion Auxiliary

    EIN 466014643 · Headquarters: Grenville, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Legion Auxiliary

    EIN 466014651 · Headquarters: Hoven, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Legion Auxiliary

    EIN 466014655 · Headquarters: Isabel, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Legion Auxiliary

    EIN 466014662 · Headquarters: Langford, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Legion Auxiliary

    EIN 466014664 · Headquarters: Lebanon, SD, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  64. American Legion Auxiliary

    EIN 466014665 · Headquarters: Lemmon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Legion Auxiliary

    EIN 466014666 · Headquarters: Leola, SD, US · Public & Societal Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  66. American Legion Auxiliary

    EIN 466014671 · Headquarters: MENNO, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Legion Auxiliary

    EIN 466014672 · Headquarters: St Lawrence, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Legion Auxiliary

    EIN 466014673 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. American Legion Auxiliary

    EIN 466014674 · Headquarters: Murdo, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  70. American Legion Auxiliary

    EIN 466014676 · Headquarters: Oelrichs, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  71. American Legion Auxiliary

    EIN 466014681 · Headquarters: Pickstown, SD, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  72. American Legion Auxiliary

    EIN 466014683 · Headquarters: Platte, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. American Legion Auxiliary

    EIN 466014685 · Headquarters: Ramona, SD, US · Public & Societal Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  74. American Legion Auxiliary

    EIN 466014687 · Headquarters: Miller, SD, US · Public & Societal Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  75. American Legion Auxiliary

    EIN 466014689 · Headquarters: Rosholt, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. American Legion Auxiliary

    EIN 466014693 · Headquarters: Seneca, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  77. American Legion Auxiliary

    EIN 466014708 · Headquarters: Tripp, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. American Legion Auxiliary

    EIN 466014709 · Headquarters: VALLEY SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Legion Auxiliary

    EIN 466014714 · Headquarters: WAKONDA, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Legion Auxiliary

    EIN 466014716 · Headquarters: Warner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Legion Auxiliary

    EIN 466014718 · Headquarters: WESSINGTON SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Legion Auxiliary

    EIN 466014719 · Headquarters: White, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Legion Auxiliary

    EIN 466014720 · Headquarters: WHITE LAKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. American Legion Auxiliary

    EIN 466014815 · Headquarters: Aurora, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. American Legion Auxiliary

    EIN 466014816 · Headquarters: BONESTEEL, SD, US · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  86. American Legion Auxiliary

    EIN 466014825 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Legion Auxiliary

    EIN 466014826 · Headquarters: Pukwana, SD, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. American Legion Auxiliary

    EIN 466014828 · Headquarters: Draper, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. American Legion Auxiliary

    EIN 466014831 · Headquarters: ERWIN, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. American Legion Auxiliary

    EIN 466014832 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Legion Auxiliary

    EIN 466014841 · Headquarters: Brookings, SD, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  92. American Legion Auxiliary

    EIN 466014843 · Headquarters: Huron, SD, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  93. American Legion Auxiliary

    EIN 466014845 · Headquarters: Mellette, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. American Legion Auxiliary

    EIN 466014851 · Headquarters: Java, SD, US · Public & Societal Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  95. American Legion Auxiliary

    EIN 466014852 · Headquarters: Milbank, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Legion Auxiliary

    EIN 466014855 · Headquarters: Sioux Falls, SD, US · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  97. American Legion Auxiliary

    EIN 466014856 · Headquarters: SISSETON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Legion Auxiliary

    EIN 466014858 · Headquarters: Crooks, SD, US · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  99. American Legion Auxiliary

    EIN 466014859 · Headquarters: TIMBER LAKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. American Legion Auxiliary

    EIN 466014861 · Headquarters: Vermillion SD, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

First page and all pages