Unknown & Unclassified nonprofits in South Dakota

Unknown & Unclassified nonprofits in South Dakota. Browse 2,816 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. Brookings County Veterans Memorial Corporation

    EIN 460414613 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Brookings Deuel Rural Water System

    EIN 460321763 · Headquarters: Toronto, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Brookings Domestic Abuse Shelter

    EIN 460395261 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Brookings Economic Development Corporation

    EIN 460440746 · Headquarters: Brookings, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Brookings Ice Skating Association Inc

    EIN 363367849 · Headquarters: Brookings, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Brookings Interagency Council

    EIN 460396232 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Brookings Kiwanis

    EIN 460355826 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Brookings Lift Learning in Faith Together

    EIN 994169981 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Brookings Regional Builders Assoc

    EIN 311503376 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Brookings Rotary Foundation

    EIN 271968494 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  11. Brookings Volunteer Fire Fighters

    EIN 460411327 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Brotherhood of Maintenance of Way Employees

    EIN 426019778 · Headquarters: NORTH SIOUX CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Brotherhood of Maintenance of Way Employees

    EIN 460397281 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Brotherhood of Maintenance of Way Employees

    EIN 466003540 · Headquarters: GARRETSON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Brown County Historical Society Incorporated

    EIN 237170652 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Burke Business Promotion Corporation

    EIN 363468991 · Headquarters: BURKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Burke Community Club Inc

    EIN 460375523 · Headquarters: BURKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Burke Community Senior Center Incorporated

    EIN 466039169 · Headquarters: BURKE, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Burke Golf Club

    EIN 460305823 · Headquarters: BURKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Burke Stampede Rodeo

    EIN 364044274 · Headquarters: Burke, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Burno Christian Family Retreat Center

    EIN 460421302 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  22. Butler Cemetery Association

    EIN 460231521 · Headquarters: Bristol, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Butte County 4-H Rodeo

    EIN 460423396 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  24. Butte Electric Cooperative Inc

    EIN 460115942 · Headquarters: NEWELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. C Athletic Association

    EIN 061775214 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  26. Cam Wal Electric Cooperative Inc

    EIN 460217251 · Headquarters: SELBY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Camp Rapid Open Mess Air Guard Branch

    EIN 460332619 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Campus Ventures

    EIN 742502054 · Headquarters: SPEARFISH, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Canton Area Historical Society Inc

    EIN 272554596 · Headquarters: Canton, SD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  30. Canton Economic Development Corporation

    EIN 460434534 · Headquarters: CANTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Canyon Lake Little League Baseball

    EIN 237116566 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Capital Area Pickleball Association of South Dakota

    EIN 463616762 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Capital City Campus Inc

    EIN 460366222 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Caputa Community Center Inc

    EIN 460392417 · Headquarters: CAPUTA, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Cardinal Clovers of South Dakota

    EIN 934204321 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Carpenters Local 587

    EIN 460241582 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Carriage Hills Water Association

    EIN 460347326 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Catholic Daughters of America

    EIN 237170323 · Headquarters: HUMBOLDT, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. Catholic Daughters of America

    EIN 460353736 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  40. Catholic Daughters of America

    EIN 510146340 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  41. Catholic Daughters of America

    EIN 510147082 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Catholic Daughters of America 2056 Ct Our Lady of Lourdes

    EIN 510141144 · Headquarters: Hot Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  43. Catholic Daughters of America 368 Court Santa Maria

    EIN 237170275 · Headquarters: Dell Rapids, SD, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  44. Catholic Daughters of America 618 Ct St Agnes

    EIN 510178947 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  45. Catholic Daughters of America 700 Court St Rose of Lima

    EIN 237170282 · Headquarters: Wagner, SD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  46. Catholic Daughters of America 916 Court St Rita

    EIN 237170305 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  47. Catholic Daughters of the Americas

    EIN 237170331 · Headquarters: CHAMBERLAIN, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  48. Catholic Daughters of the Americas

    EIN 331037944 · Headquarters: Hurley, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  49. Catholic Daughters of the Americas

    EIN 562369592 · Headquarters: Roscoe, SD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  50. Catholic Order of Foresters

    EIN 237581130 · Headquarters: Dell Rapids, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Catholic Order of Foresters

    EIN 237581297 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Catholic Order of Foresters

    EIN 237581679 · Headquarters: Dell Rapids, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Catholic Order of Foresters

    EIN 237581717 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Catholic Order of Foresters

    EIN 237581756 · Headquarters: Deadwood, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Catholic Order of Foresters

    EIN 237581986 · Headquarters: Canova, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Catholic Order of Foresters

    EIN 237582069 · Headquarters: Montrose, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Catholic Order of Foresters

    EIN 237582203 · Headquarters: Rosholt, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Catholic Order of Foresters

    EIN 460461974 · Headquarters: Roslyn, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Cbmc Inc

    EIN 510184931 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Center for Family Medicine

    EIN 460318482 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Center House Transition Facility

    EIN 810773677 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Centerville Community Ambulance Service Inc

    EIN 460284562 · Headquarters: Centerville, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Central Chapter South Dakota Engineering Society

    EIN 271718075 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  64. Central Meade County Community Center Inc

    EIN 460420517 · Headquarters: UNION CENTER, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Central South Dakota Board of Realtors Inc

    EIN 475529255 · Headquarters: Blunt, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Central South Dakota Harley Owners Group

    EIN 460441099 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. Ceres Fraternity of South Dakota State University

    EIN 363806460 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  68. Chamber of Commerce

    EIN 460118543 · Headquarters: HOT SPRINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Chamber of Commerce

    EIN 460181294 · Headquarters: Redfield, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Chamber of Commerce of Canton

    EIN 460210210 · Headquarters: CANTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Chamberlain Womens Slowpitch Softball

    EIN 463323002 · Headquarters: Chamberlain, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  72. Chamberlain-oacoma Area Chamber of Commerce

    EIN 460277365 · Headquarters: CHAMBERLAIN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Chapel Lane Water Company

    EIN 460341322 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Chapel Valley Homeowners Association

    EIN 466039592 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Chapter 39 of the Experimental Aircraft Association

    EIN 200835256 · Headquarters: Piedmont, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Chapter H Educational Loan Inc

    EIN 460381074 · Headquarters: Mobridge, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  77. Charitable Ira Initiative Inc

    EIN 473034166 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  78. Charity Cemetery Association

    EIN 300630470 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Charles Mix Electric Association Inc

    EIN 460212103 · Headquarters: LAKE ANDES, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Charles R Ingerson Family Foundation 30313202

    EIN 460407921 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  81. Cherry Todd Electric Cooperative Inc

    EIN 460252750 · Headquarters: MISSION, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Chester County Interlink

    EIN 232735210 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Cheyenne Rangers 4-H Club

    EIN 331205876 · Headquarters: Edgemont, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  84. Chi Omega Fraternity

    EIN 273921106 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  85. Chi Omega Fraternity

    EIN 466018915 · Headquarters: Bruce, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Children Center

    EIN 460351813 · Headquarters: EDGEMONT, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  87. Children's Care Hospital and School

    EIN 460233030 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Cholla Foundation

    EIN 463752963 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Christ Church Memorial Trust United National Bank Trustee

    EIN 460341127 · Headquarters: Lead, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Christ on the Mountain

    EIN 466014879 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Christian Service Council of Grant County

    EIN 363305006 · Headquarters: MILBANK, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Christian Worship Hour

    EIN 460349721 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Christopher Club Building Association Inc

    EIN 460215260 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. Chuck Lien Foundation

    EIN 881089044 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  95. Church Women United

    EIN 237266836 · Headquarters: YANKTON, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. Citizens for a Sustainable Sioux Falls

    EIN 880572072 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. Clark Center Cemeteries Inc

    EIN 273328227 · Headquarters: Clark, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Clark Chamber of Commerce

    EIN 460253410 · Headquarters: Clark, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Clark Colony School

    EIN 363320353 · Headquarters: RAYMOND, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Clark County Riders

    EIN 460373774 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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