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. Kiwanis International Inc

    EIN 611511861 · Headquarters: Sioux Falls, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  2. Kiwanis International Inc

    EIN 920503354 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Kiwanis International Inc K00451 Huron

    EIN 466007727 · Headquarters: HURON, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Kiwanis International Inc K04745 Chamberlain

    EIN 466013273 · Headquarters: CHAMBERLAIN, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  5. Kiwanis International K01251 Webste

    EIN 466008062 · Headquarters: WEBSTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Kiyalife Inc

    EIN 934257107 · Headquarters: Pine Ridge, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Klein Foundation Inc

    EIN 460323750 · Headquarters: MOBRIDGE, SD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. Knapp and Play Learning Center

    EIN 994517251 · Headquarters: Webster, SD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Knife Chief Buffalo Nation Society

    EIN 823278437 · Headquarters: PORCUPINE, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Knights of Columbus

    EIN 010910309 · Headquarters: Beresford, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Knights of Columbus

    EIN 010910472 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Knights of Columbus

    EIN 237108203 · Headquarters: WATERTOWN, SD, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Knights of Columbus

    EIN 237141525 · Headquarters: highmore, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Knights of Columbus

    EIN 237142686 · Headquarters: BURKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Knights of Columbus

    EIN 237142791 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Knights of Columbus

    EIN 237263649 · Headquarters: Mobridge, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Knights of Columbus

    EIN 237322882 · Headquarters: Deadwood, SD, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  18. Knights of Columbus

    EIN 237326618 · Headquarters: Deadwood, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  19. Knights of Columbus

    EIN 237455728 · Headquarters: LANTRY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Knights of Columbus

    EIN 237545865 · Headquarters: Timber Lake, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Knights of Columbus

    EIN 237545867 · Headquarters: Philip, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Knights of Columbus

    EIN 237545869 · Headquarters: Redfield, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Knights of Columbus

    EIN 237545870 · Headquarters: LEMMON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Knights of Columbus

    EIN 237545871 · Headquarters: Winner, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Knights of Columbus

    EIN 237545873 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Knights of Columbus

    EIN 237545875 · Headquarters: Kimball, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Knights of Columbus

    EIN 237545876 · Headquarters: DeSmet, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Knights of Columbus

    EIN 237545877 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Knights of Columbus

    EIN 237545880 · Headquarters: Sisseton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Knights of Columbus

    EIN 237545882 · Headquarters: Hoven, SD, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  31. Knights of Columbus

    EIN 237545883 · Headquarters: Orient, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Knights of Columbus

    EIN 237545885 · Headquarters: Miller, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Knights of Columbus

    EIN 237545886 · Headquarters: Grenville, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Knights of Columbus

    EIN 237545889 · Headquarters: FLANDREAU, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Knights of Columbus

    EIN 237545895 · Headquarters: Pierre, SD, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  36. Knights of Columbus

    EIN 237545896 · Headquarters: HOT SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Knights of Columbus

    EIN 237547454 · Headquarters: Mobridge, SD, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  38. Knights of Columbus

    EIN 237547456 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Knights of Columbus

    EIN 260057359 · Headquarters: Newell, SD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  40. Knights of Columbus

    EIN 262548442 · Headquarters: Brandon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Knights of Columbus

    EIN 272421419 · Headquarters: Martin, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Knights of Columbus

    EIN 320396794 · Headquarters: Clear Lake, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Knights of Columbus

    EIN 371697810 · Headquarters: BROOKINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Knights of Columbus

    EIN 460255925 · Headquarters: Sioux Falls, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Knights of Columbus

    EIN 460259975 · Headquarters: Faulkton, SD, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. Knights of Columbus

    EIN 460305261 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Knights of Columbus

    EIN 460318554 · Headquarters: Hoven, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Knights of Columbus

    EIN 460321983 · Headquarters: Chamberlain, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Knights of Columbus

    EIN 460345872 · Headquarters: gettysburg, SD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  50. Knights of Columbus

    EIN 460352005 · Headquarters: Milbank, SD, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  51. Knights of Columbus

    EIN 460352538 · Headquarters: Piedmont, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Knights of Columbus

    EIN 460353057 · Headquarters: BONESTEEL, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Knights of Columbus

    EIN 460364077 · Headquarters: PLATTE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Knights of Columbus

    EIN 460364725 · Headquarters: Britton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Knights of Columbus

    EIN 460365853 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Knights of Columbus

    EIN 460371753 · Headquarters: Parkston, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Knights of Columbus

    EIN 460377264 · Headquarters: Howard, SD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  58. Knights of Columbus

    EIN 460378808 · Headquarters: Custer, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Knights of Columbus

    EIN 460382967 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Knights of Columbus

    EIN 460383842 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Knights of Columbus

    EIN 460392303 · Headquarters: Salem, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Knights of Columbus

    EIN 460401672 · Headquarters: Armour, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Knights of Columbus

    EIN 460413725 · Headquarters: Montrose, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Knights of Columbus

    EIN 460415778 · Headquarters: IPSWICH, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Knights of Columbus

    EIN 460437539 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Knights of Columbus

    EIN 460443802 · Headquarters: Milbank, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Knights of Columbus

    EIN 460444289 · Headquarters: Sioux falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Knights of Columbus

    EIN 460447982 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Knights of Columbus

    EIN 460455360 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Knights of Columbus

    EIN 460460382 · Headquarters: Hurley, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Knights of Columbus

    EIN 463493573 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Knights of Columbus

    EIN 466012345 · Headquarters: HURON, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. Knights of Columbus

    EIN 466012485 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Knights of Columbus

    EIN 466012590 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Knights of Columbus

    EIN 466039131 · Headquarters: Wagner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Knights of Columbus

    EIN 466040277 · Headquarters: Tyndall, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Knights of Columbus

    EIN 470973332 · Headquarters: Stickney, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Knights of Columbus

    EIN 475061082 · Headquarters: Tea, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Knights of Columbus

    EIN 510135729 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Knights of Columbus

    EIN 680661241 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Knights of Columbus

    EIN 813364051 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  82. Knights of Columbus

    EIN 824630275 · Headquarters: Madison, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Knights of Columbus

    EIN 841747760 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Knights of Columbus

    EIN 851677487 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Knights of Columbus

    EIN 863717441 · Headquarters: ROSHOLT, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Knights of Columbus

    EIN 871464431 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Knights of Columbus

    EIN 872278716 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Knights of Columbus

    EIN 900384766 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Knights of Columbus

    EIN 900413605 · Headquarters: Jefferson, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Knights of Columbus

    EIN 900425494 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Knights of Columbus 1525 Eudes Council

    EIN 237142416 · Headquarters: WOONSOCKET, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Knights of Columbus 16802 Christ the King

    EIN 822387476 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Knights of Columbus Council 1489

    EIN 466012472 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  94. Knights of Columbus Council 6668

    EIN 510179503 · Headquarters: Ramona, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Knights of Columbus Council No 2686 Pierre

    EIN 237545868 · Headquarters: PIERRE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Knights of Columbus Home Association Inc

    EIN 460209493 · Headquarters: aberdeen, SD, US · Housing & Shelter · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  97. Knights of Columbus St Agnes

    EIN 460413961 · Headquarters: Vermillion, SD, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  98. Knights of the York Cross of Honour Convent General

    EIN 237532696 · Headquarters: PIERRE, SD, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  99. Knights Templar Educational Foundation of the Grand Emcampment

    EIN 460356294 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Knights Templar of the United States of America

    EIN 237618891 · Headquarters: Watertown, SD, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

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