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. International Association of Lions Clubs

    EIN 475170634 · Headquarters: MOBRIDGE, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. International Association of Lions Clubs

    EIN 510230058 · Headquarters: Hartford, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  3. International Association of Lions Clubs

    EIN 814292974 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. International Association of Lions Clubs

    EIN 852956351 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. International Association of Lions Clubs

    EIN 854085453 · Headquarters: HILL CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. International Association of Machinists & Aerospace Workers

    EIN 460332746 · Headquarters: Watertown, SD, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  7. International Association of Machinists & Aerospace Workers

    EIN 466015253 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  8. International Association of Rehabilitation Professionals

    EIN 460451351 · Headquarters: Sioux Falls, SD, US · Mental Health & Crisis Intervention · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  9. International Association of Sheet Metal Air Rail & Transportation

    EIN 426000487 · Headquarters: dakota dunes, SD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. International Association of Sheet Metal Air Rail & Transportation

    EIN 460357027 · Headquarters: BOX ELDER, SD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. International Association of Sheet Metal Air Rail & Transportation

    EIN 466000215 · Headquarters: ABERDEEN, SD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. International Association of Sheet Metal Air Rail & Transportation

    EIN 813790194 · Headquarters: HURON, SD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. International Brotherhood of Electrical Workers

    EIN 460225587 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. International Brotherhood of Electrical Workers

    EIN 460348064 · Headquarters: Westport, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. International Brotherhood of Electrical Workers

    EIN 466014902 · Headquarters: Huron, SD, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  16. International Brotherhood of Electrical Workers

    EIN 466014905 · Headquarters: MOBRIDGE, SD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. International Brotherhood of Electrical Workers

    EIN 466014906 · Headquarters: Mitchell, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  18. International Brotherhood of Electrical Workers

    EIN 466014907 · Headquarters: Chamberlain, SD, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  19. International Brotherhood of Electrical Workers

    EIN 466014908 · Headquarters: spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. International Brotherhood of Electrical Workers Lo

    EIN 466014903 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. International Brotherhood of Local 426

    EIN 460136667 · Headquarters: SIOUX FALLS, SD, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. International Brotherhood of System Council U-26

    EIN 450362830 · Headquarters: Mitchell, SD, USA · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  23. International Building Performance Simulation Asso

    EIN 541886070 · Headquarters: RAPID CITY, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. International Fraternity of Delta Sigma Pi

    EIN 260370382 · Headquarters: Sioux Falls, SD, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  25. International Golf Course Equipment Managers Association Inc

    EIN 261294138 · Headquarters: RAPID CITY, SD, USA · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  26. International Golfing Fellowship of Rotarians Inc

    EIN 460455273 · Headquarters: SIOUX FALLS, SD, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. International Harvestor Collectors Chapter 21 of South Dakota Inc

    EIN 272438388 · Headquarters: HARTFORD, SD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. International House Inc

    EIN 812983103 · Headquarters: Rapid City, SD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. International Indigenous Transformative Collaboration - Initc

    EIN 814873724 · Headquarters: Hermosa, SD, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. International Literacy Association

    EIN 824777311 · Headquarters: Herreid, SD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. International Mountain Bicycling Association

    EIN 825248508 · Headquarters: Pierre, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. International Nisi Foundation Inc

    EIN 921665528 · Headquarters: Sioux Falls, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. International Reading Association Inc

    EIN 237048498 · Headquarters: Winner, SD, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  34. International Reading Association Inc

    EIN 237061529 · Headquarters: Lake Andes, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  35. International Reading Association Inc

    EIN 237089336 · Headquarters: Sioux Falls, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  36. International Reading Association Inc

    EIN 237173650 · Headquarters: Herreid, SD, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  37. International Reading Association Inc

    EIN 363188566 · Headquarters: Sturgis, SD, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  38. International Reading Association Inc

    EIN 460346043 · Headquarters: Pierre, SD, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  39. International Reading Association Inc

    EIN 460363733 · Headquarters: Gayville, SD, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  40. International Reading Association Inc

    EIN 460396545 · Headquarters: Yankton, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  41. International Reading Association Inc

    EIN 460402273 · Headquarters: Custer, SD, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  42. International Reading Association Inc

    EIN 460403759 · Headquarters: Sioux Falls, SD, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  43. International Reading Association Inc

    EIN 460405901 · Headquarters: spearfish, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  44. International Reading Association Inc

    EIN 460410431 · Headquarters: Ramona, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  45. International Reading Association Inc

    EIN 460421566 · Headquarters: Chamberlain, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  46. International Reading Association Inc

    EIN 460428441 · Headquarters: Deadwood, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  47. International Reading Association Inc

    EIN 460429750 · Headquarters: Bison, SD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  48. International Reading Association Inc

    EIN 460439143 · Headquarters: Herreid, SD, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. International Reading Association Inc

    EIN 460440382 · Headquarters: MARTIN, SD, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  50. International Reading Association Inc

    EIN 460458801 · Headquarters: Buffalo, SD, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  51. International Reading Association Inc

    EIN 460462061 · Headquarters: Spearfish, SD, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  52. International Reading Association Inc

    EIN 466017087 · Headquarters: Rapid City, SD, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  53. International Reading Association Inc

    EIN 466017088 · Headquarters: ABERDEEN, SD, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  54. International Society for Philosophical Enquiry

    EIN 990216933 · Headquarters: PIEDMONT, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. International Society for the Protection of Mustangs and Burros

    EIN 946169422 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. International Union of Bricklayer and Allied Craftworkers

    EIN 466015712 · Headquarters: SIOUX FALLS, SD, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  57. International Union of Bricklayers 1 Bac Local South Dakota

    EIN 510161524 · Headquarters: SIOUX FALLS, SD, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  58. International Union of Bricklayers 2 Bac South Dakota Local

    EIN 466015212 · Headquarters: YANKTON, SD, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  59. International Union of Bricklayers and Allied Craftworkers

    EIN 237163168 · Headquarters: SIOUX FALLS, SD, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  60. International Union of Bricklayers and Allied Craftworkers

    EIN 460338435 · Headquarters: SIOUX FALLS, SD, US · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  61. Intertribal Bison Inc

    EIN 841209177 · Headquarters: RAPID CITY, SD, USA · Animal Related · Latest available filing year: 2009 · Primary form: IRS Form 990

  62. Inyan Hocoka Tipi Ki Prevention Resource Center

    EIN 454616063 · Headquarters: Parmelee, SD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Iona Cemetery Association

    EIN 460452558 · Headquarters: GREGORY, SD, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Iona Community Center Inc

    EIN 800165019 · Headquarters: IONA, SD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ions

    EIN 461352973 · Headquarters: Sioux Falls, SD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Ipswich Commercial Club Inc

    EIN 460347278 · Headquarters: Ipswich, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ipswich Community Development Corporation

    EIN 237235052 · Headquarters: Ipswich, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ipswich Golf Club

    EIN 460306312 · Headquarters: Ipswich, SD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. Ipswich Senior Citizens Club Inc

    EIN 363591118 · Headquarters: IPSWICH, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Ipswich Soccer Association

    EIN 542146213 · Headquarters: Ipswich, SD, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  71. Ipswich Tiger Post Community Center

    EIN 460450340 · Headquarters: Ipswich, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Irene Community Service Groups Inc

    EIN 460432588 · Headquarters: IRENE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Irene Development Corporation

    EIN 900108092 · Headquarters: Irene, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Irene Wakonda Parent Teacher Organization

    EIN 800533561 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  75. Iron Warrior Academy

    EIN 862406261 · Headquarters: Webster, SD, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Ironfox Farm

    EIN 872005225 · Headquarters: Sioux Falls, SD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Iroquois Booster Club

    EIN 473438261 · Headquarters: Iroquois, SD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Iroquois Housing Inc

    EIN 466024495 · Headquarters: Iroquois, SD, US · Housing & Shelter · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  79. Iroquois Youth Activities Fund

    EIN 364127061 · Headquarters: Iroquois, SD, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Irrigators Association of Southeast South Dakota

    EIN 320407687 · Headquarters: Viborg, SD, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Isabel Daycare Visions in Progress

    EIN 812685691 · Headquarters: Isabel, SD, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Isabel Visions in Progress Fund

    EIN 760814625 · Headquarters: Isabel, SD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  83. Islamic Society of Brookings

    EIN 311281991 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  84. It Only Takes A Spark

    EIN 203731120 · Headquarters: Milbank, SD, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Itc Rural Economic Development Inc

    EIN 753002561 · Headquarters: CLEAR LAKE, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Its 24 7 Ministry

    EIN 883202390 · Headquarters: SIOUX FALLS, SD, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ivancas Hope Inc

    EIN 320068788 · Headquarters: Sioux Falls, SD, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  88. Izaak Walton League - Sunshine Chapter

    EIN 460211864 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Izaak Walton League America Sioux Falls

    EIN 466015165 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Izaak Walton League of Amercia Inc

    EIN 460344281 · Headquarters: Madison, SD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Izaak Walton League of America Inc

    EIN 364641158 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Izaak Walton League of America Inc

    EIN 460362465 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Izaak Walton League of America Inc

    EIN 460377961 · Headquarters: North Sioux City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Izaak Walton League of America Inc

    EIN 460420221 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Izaak Walton League of America Inc

    EIN 466014969 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Izaak Walton League of America Inc

    EIN 743230458 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. J W Parmley Historical Home Society

    EIN 460363275 · Headquarters: Ipswich, SD, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  98. Jackrabbit Former Players Association

    EIN 825447883 · Headquarters: BROOKINGS, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Jackrabbit Golf Club Inc

    EIN 823239554 · Headquarters: VOLGA, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Jackrabbit Track and Field Associat

    EIN 934784316 · Headquarters: BROOKINGS, SD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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