Unknown & Unclassified nonprofits in Idaho

Unknown & Unclassified nonprofits in Idaho. Browse 3,294 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. Society of American Foresters

    EIN 237056241 · Headquarters: Idaho City, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Society of American Foresters

    EIN 237397215 · Headquarters: Lewiston, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Society of American Military Engineers

    EIN 820456550 · Headquarters: Mountain Home, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Society of Health and Physical Educators

    EIN 820525537 · Headquarters: Nampa, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Society of Saint Vincent De Paul Holy Spirit Conference

    EIN 820458492 · Headquarters: POCATELLO, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Society of Women Engineers

    EIN 820448355 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. Soda Springs Youth Sports Foundation Inc

    EIN 332117383 · Headquarters: Soda Springs, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Sodality of the Angels of Mercy Inc

    EIN 934620235 · Headquarters: MIDDLETON, ID, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  9. Sojourners' Alliance Inc

    EIN 820450752 · Headquarters: MOSCOW, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Solon Gardner Benefit Account

    EIN 472330062 · Headquarters: Gooding, ID, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  11. Sons of Norway

    EIN 237525662 · Headquarters: Coeur d Alene, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Sons of Norway

    EIN 820353835 · Headquarters: WILDER, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Sons of Norway

    EIN 911691211 · Headquarters: Lewiston, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Sonshine Enterprise

    EIN 851930090 · Headquarters: Idaho City, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Soroptimist International of Boise Idaho

    EIN 820236457 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Soroptimist International of the Americas Inc

    EIN 263829030 · Headquarters: Nampa, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Sos Eagle Inc

    EIN 872867022 · Headquarters: EAGLE, ID, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. South Boise Mutual Irrigation Co Ltd

    EIN 820166285 · Headquarters: Boise, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. South Boise Water Company

    EIN 820166287 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. South Central Community Action Partnership Inc

    EIN 820277836 · Headquarters: TWIN FALLS, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. South Central Idaho Bacterial Blight Control Association Inc

    EIN 820264240 · Headquarters: Burley, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. South Central Idaho Medical Society

    EIN 932652145 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. South Central Idaho Womans Council of Realtors

    EIN 460477808 · Headquarters: Twin Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  24. South Custer County Historical Society Inc

    EIN 820379546 · Headquarters: Mackay, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. South Darby Sprinkler Irrigation Company Inc

    EIN 820300092 · Headquarters: DRIGGS, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. South East Idaho Practical Shooters Inc

    EIN 820425011 · Headquarters: Idaho Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. South Fork Disc Golf

    EIN 464434584 · Headquarters: Idaho Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. South Fremont Education Foundation Inc

    EIN 820448824 · Headquarters: Saint Anthony, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. South Texas Youth Soccer Association

    EIN 760021728 · Headquarters: COEUR D ALENE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. SOUTH Texas YOUTH SOCCER Eastern District Division 2 League

    EIN 831063096 · Headquarters: COEUR D ALENE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. South West Idaho Sports Car Club

    EIN 820487172 · Headquarters: Caldwell, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  32. Southeast Idaho Chapter of the Womens Council of Realtors

    EIN 481283723 · Headquarters: Ammon, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Southeast Idaho Democratic Socialists of America Inc

    EIN 331952509 · Headquarters: Post Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Southeast Idaho Gem and Mineral Society Inc

    EIN 826009878 · Headquarters: Pocatello, ID, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  35. Southeast Idaho High Country Tourism

    EIN 820412527 · Headquarters: LAVA HOT SPRINGS, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Southeast Idaho Little League Football Inc

    EIN 820405362 · Headquarters: POCATELLO, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. Southeast Idaho Soccer Referee Association Inc

    EIN 272178342 · Headquarters: Pocatello, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Southeastern Idaho Community Action Agency Inc

    EIN 820290341 · Headquarters: POCATELLO, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Southern Idaho Compensation & Benefit Association

    EIN 820497340 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Southern Idaho Democratic Socialists of America

    EIN 333881865 · Headquarters: twin falls, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Southern Idaho Society for Software Quality Assurance

    EIN 753055773 · Headquarters: Star, ID, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  42. Southern Idaho Timber Protective Associa

    EIN 820369048 · Headquarters: McCall, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Southshore Landscape Fund

    EIN 465077338 · Headquarters: Nampa, ID, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  44. Southside Electric Inc

    EIN 820110465 · Headquarters: DECLO, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Southwest Ada Little League Inc

    EIN 820455788 · Headquarters: Boise, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Southwest Educators Association-retired

    EIN 472213156 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  47. Southwest Hide Company Employee Benefit Trust

    EIN 820385099 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Southwest Idaho Chapter of the Ntl Assn of Residential Prpty Mgr

    EIN 820527639 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Southwest Idaho Legacy Organization Inc

    EIN 820200892 · Headquarters: CALDWELL, ID, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  50. Southwest Idaho Travel Association

    EIN 820440928 · Headquarters: Boise, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Southwestern Idaho Senior Citizens Recreational Association Inc

    EIN 820348321 · Headquarters: Meridian, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Southwestern Regional Group of the Horseless Carriage Club Inc

    EIN 270649471 · Headquarters: Emmett, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Spikes & Fur

    EIN 611627572 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  54. Spirit Lake Chamber of Commerce

    EIN 820489260 · Headquarters: Spirit Lake, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Spirit Lake Senior Citizens

    EIN 820349332 · Headquarters: Spirit Lake, ID, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  56. Spokana Falls Needlework Guild

    EIN 911326152 · Headquarters: Hayden, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Spokane Marine Dealers Association

    EIN 910960427 · Headquarters: Hayden, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  58. Spokane River Association Inc

    EIN 820422913 · Headquarters: Coeur D Alene, ID, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  59. Sprag Pole Museum Inc

    EIN 943052266 · Headquarters: Murray, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Squaw Butte Back Country Horse Men

    EIN 820451118 · Headquarters: Emmett, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Squaw Creek Ditch Company

    EIN 472648911 · Headquarters: Sweet, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. Squirrel Creek Irrigation & Canal Co Limited

    EIN 826009033 · Headquarters: Ashton, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. St Joe Cycle Club

    EIN 863815024 · Headquarters: St Maries, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. St Joe Snow Riders

    EIN 820478899 · Headquarters: ST MARIES, ID, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. St Joseph Building Association Inc

    EIN 820338484 · Headquarters: FERDINAND, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. St Luke's Mccall Foundation

    EIN 820384205 · Headquarters: MCCALL, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. St Lukes Mccall Auxiliary Inc

    EIN 820413261 · Headquarters: MCCALL, ID, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  68. St Lukes Regional Medical Center Auxiliary Inc

    EIN 820255667 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. St Maries Fire Association

    EIN 334726111 · Headquarters: SAINT MARIES, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. St Marks School Foundation Inc

    EIN 820428765 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. St Marys School Foundation

    EIN 820383070 · Headquarters: MOSCOW, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. St Pauls Educational Foundation Inc

    EIN 820401234 · Headquarters: Nampa, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Stage Coach Inc

    EIN 820366085 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Stanley Street Dance

    EIN 931605342 · Headquarters: Stanley, ID, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Star Adventurers

    EIN 320321312 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  76. Star Bright Camp Daughters of the Utah Pioneers

    EIN 820438687 · Headquarters: Rupert, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Star Id Chapter Spebsqsa

    EIN 880573785 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  78. Steele Memorial Benefit Association

    EIN 820331253 · Headquarters: SALMON, ID, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  79. Steiner Family Foundation

    EIN 954133581 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  80. Stephens Gulch Homestead

    EIN 861428686 · Headquarters: CHALLIS, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  81. Stephens Gulch Water Association

    EIN 870971643 · Headquarters: Challis, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Steven H Nipp American Legion

    EIN 593834127 · Headquarters: POST FALLS, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Sting Premier Soccer Club Inc Dba Timbers Thorns North Fc

    EIN 943094763 · Headquarters: HAYDEN, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Stms Snow Club

    EIN 934588937 · Headquarters: Star, ID, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Stoneridge Pines Association Inc

    EIN 826011108 · Headquarters: Harrison, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Students Local and International Collaboration for Environment Thro

    EIN 814777280 · Headquarters: marsing, ID, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. Students of Design

    EIN 933382347 · Headquarters: Moscow, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Sun Bonnet Camp of the Daughters of the Utah Pioneers

    EIN 800610408 · Headquarters: Rexburg, ID, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  89. Sun Valley Ballet Foundation Inc

    EIN 820351110 · Headquarters: Hailey, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Sun Valley Center for the Arts Inc

    EIN 237113276 · Headquarters: SUN VALLEY, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Sun Valley Figure Skating Club Inc

    EIN 820315963 · Headquarters: SUN VALLEY, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. Sun Valley Gallery Association Inc

    EIN 820445131 · Headquarters: SUN VALLEY, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Sun Valley Ski Club Inc

    EIN 826010311 · Headquarters: Sun Valley, ID, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Sun Valley Ski Education Foundation Inc

    EIN 820264946 · Headquarters: SUN VALLEY, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Sun Valley Tourism Alliance Inc

    EIN 820254694 · Headquarters: KETCHUM, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Sunny Ridge Water Association

    EIN 263980646 · Headquarters: Nampa, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Sunnydell Irrigation District

    EIN 826051604 · Headquarters: REXBURG, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. Sunnyside Elementary Pto

    EIN 820446633 · Headquarters: Idaho Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Sunset Home Assisted Living Inc

    EIN 452393578 · Headquarters: BONNERS FERRY, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Surplus Line Association of Idaho

    EIN 237217173 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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