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. Watertown Tennis Association

    EIN 352651116 · Headquarters: Watertown, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Watertown Volunteer Center

    EIN 460454442 · Headquarters: WATERTOWN, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Watertown Youth Soccer Association

    EIN 911787664 · Headquarters: WATERTOWN, SD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Waubay Housing Inc

    EIN 460342803 · Headquarters: WAUBAY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Waubay Senior Citizens Association Inc

    EIN 881378044 · Headquarters: Waubay, SD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Wbfi Research Foundation

    EIN 202420919 · Headquarters: Rapid City, SD, US · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. We Care Rapid City Inc

    EIN 465092658 · Headquarters: RAPID CITY, SD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. Weapons 4 Warriors

    EIN 842334216 · Headquarters: WHITEWOOD, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Weathered and Redeemed Ministries

    EIN 413671304 · Headquarters: Spearfish, SD, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Web Water Development Association Inc

    EIN 460352027 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Weber Family Foundation Inc

    EIN 474455620 · Headquarters: RAPID CITY, SD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Webster 2020 Inc

    EIN 201307620 · Headquarters: WEBSTER, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Webster Alumni Foundation

    EIN 460458793 · Headquarters: WEBSTER, SD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Webster Area Chamber of Commerce

    EIN 460284276 · Headquarters: WEBSTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Webster Area Development Corporation

    EIN 460437892 · Headquarters: WEBSTER, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Webster Area People Against Childhood Hunger Inc

    EIN 461409331 · Headquarters: Webster, SD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Webster Area Soccer Association

    EIN 460462598 · Headquarters: Webster, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Webster Centennial Commitee Inc

    EIN 460356501 · Headquarters: WEBSTER, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Webster Paws Walk

    EIN 874411141 · Headquarters: Webster, SD, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Webster Pta

    EIN 260084714 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Webster Swim Team

    EIN 611946788 · Headquarters: Bristol, SD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Webster Wrestling Booster Club

    EIN 260277140 · Headquarters: Webster, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Webster Youth Center Inc

    EIN 460423532 · Headquarters: WEBSTER, SD, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  24. Weekend Snack Pack Inc

    EIN 273846471 · Headquarters: MITCHELL, SD, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Wegner Arboretum Society

    EIN 208784637 · Headquarters: Sioux Falls, SD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Welcome

    EIN 393211930 · Headquarters: Rapid City, SD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Welcome Table Inc

    EIN 460462380 · Headquarters: Vermillion, SD, US · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Weld County Good Samaritan Housing Gp Inc

    EIN 461591360 · Headquarters: SIOUX FALLS, SD, USA · Housing & Shelter · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  29. Welk Family Foundation

    EIN 363579562 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Well-Being Connections

    EIN 844906062 · Headquarters: Sioux Falls, SD, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Wellspring Inc C/o Abbott House

    EIN 460414463 · Headquarters: MITCHELL, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Wellspring Wholistic Care Center

    EIN 460355479 · Headquarters: Freeman, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Weskota Apartments

    EIN 460403490 · Headquarters: Wessington Springs, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Weskota Foundation

    EIN 460415751 · Headquarters: Wessington Springs, SD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Weskota Manor Inc

    EIN 460273307 · Headquarters: WESSINGTON SPRINGS, SD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Wesley Acres Foundation

    EIN 363756874 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  37. Wesley Acres Inc

    EIN 466017601 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. Wesley United Methodist Church Foundation of Sioux Falls

    EIN 460413327 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Wesleyan Homes Inc

    EIN 237088782 · Headquarters: Gettysburg, SD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Wessington Cia

    EIN 994953903 · Headquarters: WESSINGTON, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Wessington Economic Development Inc

    EIN 460411203 · Headquarters: Wessington, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Wessington Heritage Society

    EIN 260358511 · Headquarters: WESSINGTON, SD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Wessington Public Library

    EIN 300076764 · Headquarters: WESSINGTON, SD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Wessington Springs Area Chamber & Development

    EIN 460336659 · Headquarters: Wessington Springs, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Wessington Springs Chamber of Commerce Inc

    EIN 466015011 · Headquarters: Wessington Springs, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. Wessington Springs Senior Citizens Center

    EIN 460332634 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Wessington Springs Soccer Association

    EIN 464535298 · Headquarters: Wessington Springs, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Wesson Littau Foundation Inc

    EIN 461352673 · Headquarters: Winner, SD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  49. West African Kingdom Expansion Ministries

    EIN 814028109 · Headquarters: Hitchcock, SD, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  50. West Boulevard Neighborhood Association

    EIN 460461705 · Headquarters: Rapid City, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  51. West Central Area Soccer Association

    EIN 471572793 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  52. West Central Athletic Booster Club

    EIN 460345608 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. West Central Baseball Association

    EIN 464596999 · Headquarters: HARTFORD, SD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. West Central Education Foundation

    EIN 332579084 · Headquarters: Hartford, SD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. West Central Electric Cooperative

    EIN 460225950 · Headquarters: MURDO, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. West Central Jo Volleyball Inc

    EIN 832251609 · Headquarters: Hartford, SD, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. West Central Music Association Inc

    EIN 273488243 · Headquarters: Hartford, SD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. West Central Pta

    EIN 455464007 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. West Mcpherson Ems Inc

    EIN 462265732 · Headquarters: EUREKA, SD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. West River Area Health Education Center

    EIN 843791857 · Headquarters: BOX ELDER, SD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. West River Democratic Socialists

    EIN 871538784 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. West River Electric Assn Inc

    EIN 460204517 · Headquarters: WALL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. West River Electric Charitable Trust Inc

    EIN 460454370 · Headquarters: Wall, SD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. West River Estate Planning Council

    EIN 460375389 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. West River Foundation

    EIN 363354458 · Headquarters: STURGIS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. West River Foundation for Economic and Community Development

    EIN 460457322 · Headquarters: STURGIS, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. West River History Conference

    EIN 200192264 · Headquarters: Rapid City, SD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. West River Lyman Jones Rural Water Systems

    EIN 460365836 · Headquarters: MURDO, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. West River Pink Ladies Dart League

    EIN 812156231 · Headquarters: Rapid City, SD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. West River Resettlement

    EIN 990874189 · Headquarters: Rapid City, SD, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. West River Transit Authority Inc Dba Prairie Hills Transit

    EIN 911848280 · Headquarters: SPEARFISH, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. West Sioux Ii 4-H Club of Brookings County

    EIN 611958227 · Headquarters: Volga, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Westendorf Family Foundation C/o Neal W Westendorf

    EIN 426373031 · Headquarters: DAKOTA DUNES, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  74. Western 4-H Family and Consumer Sciences Show

    EIN 237327213 · Headquarters: Custer, SD, US · Social Science · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  75. Western Bat Working Group

    EIN 201205119 · Headquarters: Rapid City, SD, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Western Dakota

    EIN 883713666 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  77. Western Dakota 4-H Camp Association Sanders

    EIN 460403113 · Headquarters: HERMOSA, SD, USA · Youth Development · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  78. Western Dakota 4H Trust

    EIN 466105379 · Headquarters: SPEARFISH, SD, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  79. Western Dakota Antique Club Inc

    EIN 461944768 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Western Dakota Camp Association

    EIN 820646119 · Headquarters: HERMOSA, SD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Western Dakota Gems & Mineral Society

    EIN 460357058 · Headquarters: Rapid City, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Western Dakota Regional Water System

    EIN 880625032 · Headquarters: RAPID CITY, SD, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Western Dakota Trust

    EIN 826769966 · Headquarters: SPEARFISH, SD, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  84. Western Dakota Vocational Technical Foundation Inc

    EIN 460340050 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Western Fraternal Life Association

    EIN 237540061 · Headquarters: Tabor, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Western Fraternal Life Association

    EIN 237540062 · Headquarters: Tyndall, SD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  87. Western Fraternal Life Association

    EIN 237540063 · Headquarters: Wagner, SD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Western Fraternal Life Association

    EIN 237540066 · Headquarters: Burke, SD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  89. Western Heights Women of Today

    EIN 271662827 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. Western Hills Humane Society

    EIN 460381354 · Headquarters: Spearfish, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Western Junior Livestock Show Assoc

    EIN 237227374 · Headquarters: OWANKA, SD, USA · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  92. Western Resources for Independ

    EIN 460401091 · Headquarters: RAPID CITY, SD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Western Sd High Plains Anglers

    EIN 853584172 · Headquarters: SPEARFISH, SD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Western South Dakota Child Protection Council

    EIN 460373882 · Headquarters: RAPID CITY, SD, US · Crime & Legal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  95. Western South Dakota Community Action Agency

    EIN 460281029 · Headquarters: RAPID CITY, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Western South Dakota Council of Senior Centers

    EIN 464848075 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  97. Western South Dakota Senior Services Inc

    EIN 460362991 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Westhills Village Foundation

    EIN 363634283 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Westport Community Club Inc

    EIN 460419035 · Headquarters: Westport, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Westside Alano Society

    EIN 460305504 · Headquarters: Sioux Falls, SD, US · Mental Health & Crisis Intervention · Latest available filing year: 2019 · Primary form: IRS Form 990-N

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