Nonprofits in Knoxville, Iowa

Nonprofits in Knoxville, Iowa. Browse 239 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. 121 Emerson

    EIN 237548257 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  2. 139 Magi Chapter

    EIN 427333539 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  3. 147 Humboldt

    EIN 426066277 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. 171 Kingsley Pearson

    EIN 237548288 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  5. 174 Model

    EIN 237548289 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  6. 232 Lafayette

    EIN 237548329 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  7. 311 Aurora

    EIN 237058774 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  8. 374 Gardner

    EIN 421226110 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  9. 4-H Clubs & Affiliated 4-H Organizations

    EIN 320224231 · Headquarters: knoxville, IA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  10. 4-H Clubs & Affiliated 4-H Organizations

    EIN 352315671 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  11. 4-H Clubs & Affiliated 4-H Organizations

    EIN 421086429 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  12. 4-H Clubs & Affiliated 4-H Organizations

    EIN 421222537 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  13. 4-H Clubs & Affiliated 4-H Organizations

    EIN 421394497 · Headquarters: Knoxville, IA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. 445 Emma Beckman

    EIN 237548474 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  15. 518 Runnells

    EIN 426067372 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  16. 77 Franklin

    EIN 237548228 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  17. America Brittany Club Inc

    EIN 274012334 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. American Federation of Government Employees

    EIN 237309393 · Headquarters: Knoxville, IA, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  19. American Legion Post 168 Baty Tucker

    EIN 426127856 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Ancient Free & Accepted Masons of Iowa

    EIN 237502981 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. Ancient Free & Accepted Masons of Iowa

    EIN 420750010 · Headquarters: KNOXVILLE, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Army Air Force Research Association

    EIN 421575499 · Headquarters: KNOXVILLE, IA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Ascp Iowa Chapter

    EIN 421189071 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Assessment Action Alliance Inc Credential Integrity Action Alliance Inc

    EIN 922256617 · Headquarters: KNOXVILLE, IA, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Association of Lazy Daz Estates Property Owners

    EIN 332773766 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Bethel Community Outreach - Uganda

    EIN 852964367 · Headquarters: Knoxville, IA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Beverly J Eck Education Foundation

    EIN 474026826 · Headquarters: KNOXVILLE, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Birthright of Knoxville

    EIN 421356372 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Casey Spears Memorial Scholarship

    EIN 261114436 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Daughters of Union Veterans of the Civil War 1861-1865

    EIN 237021427 · Headquarters: Knoxville, IA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Delta Kappa Gamma Society

    EIN 426096644 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Department of Iowa Auxiliary to the Veterans of Foreign Wars

    EIN 300495650 · Headquarters: Knoxville, IA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Disabled American Veterans

    EIN 426124921 · Headquarters: Knoxville, IA, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  34. District 10 Holstein Association

    EIN 421259983 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  35. Esther H Browne Scholarship Trust

    EIN 421281802 · Headquarters: KNOXVILLE, IA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Fire-rescue Association of Knoxville Iowa

    EIN 331142623 · Headquarters: Knoxville, IA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Friends of Bellefountaine Cemetery

    EIN 461537222 · Headquarters: Knoxville, IA, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  38. Friends of Elk Rock

    EIN 201849640 · Headquarters: KNOXVILLE, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Future Farmers of America State Associations & Local Chapter

    EIN 472032601 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. German Shorthaired Pointer Club of Central Iowa

    EIN 465474730 · Headquarters: KNOXVILLE, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Grand Chapter of Iowa Order of the Eastern Star

    EIN 420450590 · Headquarters: KNOXVILLE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Grand Theater Foundation Inc

    EIN 352464040 · Headquarters: KNOXVILLE, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990

  43. Greenwood Cemetery

    EIN 843505247 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Helping Hands Food Pantry

    EIN 421389348 · Headquarters: KNOXVILLE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Independent Telephone Pioneer Association

    EIN 521326283 · Headquarters: KNOXVILLE, IA, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  46. Indiana Township Fire Department

    EIN 680515695 · Headquarters: Knoxville, IA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. International Association of Lions Clubs

    EIN 237061535 · Headquarters: KNOXVILLE, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  48. Iowa Farm Bureau Federation

    EIN 420680719 · Headquarters: Knoxville, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Iowa Field Trial Association Inc

    EIN 820730540 · Headquarters: Knoxville, IA, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Iowa Street Rod Association Inc

    EIN 237256108 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. John Myer Veterans of Foreign War Post No 3519

    EIN 833974629 · Headquarters: Knoxville, IA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Kiwanis International Inc

    EIN 420939567 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  53. Knights of Columbus

    EIN 421170172 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Knoxville Alumni Association

    EIN 371524850 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Knoxville Area Community Theatre Inc

    EIN 421217619 · Headquarters: Knoxville, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Knoxville Bb Association

    EIN 823315764 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Knoxville Booster Club

    EIN 814989006 · Headquarters: KNOXVILLE, IA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Knoxville Bravo Concert Series

    EIN 813500549 · Headquarters: Knoxville, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Knoxville Chamber of Commerce Inc

    EIN 420631674 · Headquarters: KNOXVILLE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Knoxville Community Chorus

    EIN 901022690 · Headquarters: Knoxville, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Knoxville Draggins Inc

    EIN 462289592 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Knoxville Economic Development Corporation

    EIN 472170508 · Headquarters: KNOXVILLE, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Knoxville Education Foundation Inc

    EIN 421449298 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  64. Knoxville Elementary Schools Pto

    EIN 834269324 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Knoxville Food Youth Initiative

    EIN 824568315 · Headquarters: KNOXVILLE, IA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Knoxville Heritage Foundation

    EIN 421246587 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Knoxville Hospital & Clinics Foundation

    EIN 421087612 · Headquarters: Knoxville, Iowa, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Knoxville Hospital and Clinics

    EIN 900126510 · Headquarters: KNOXVILLE, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Knoxville Iowa Fireworks Foundation

    EIN 470988414 · Headquarters: Knoxville, IA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  70. Knoxville Lions Club

    EIN 465421149 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  71. Knoxville Music Boosters Inc

    EIN 421423232 · Headquarters: KNOXVILLE, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Knoxville Noon Kiwanis Club

    EIN 421410314 · Headquarters: Knoxville, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Knoxville Panther Scholarship Found

    EIN 900520215 · Headquarters: KNOXVILLE, IA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990

  74. Knoxville Panthers Xc Club

    EIN 934004471 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Knoxville Preservation Foundation

    EIN 333491263 · Headquarters: KNOXVILLE, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Knoxville Racing Charitable Org Inc

    EIN 391902483 · Headquarters: KNOXVILLE, IA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Knoxville Senior Center

    EIN 811051076 · Headquarters: KNOXVILLE, IA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Knoxville Shooting Team Inc

    EIN 821369703 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Knoxville Soccer Club

    EIN 460857697 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Knoxville Township Fire Rescue Association

    EIN 421425855 · Headquarters: Knoxville, IA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Knoxville Volunteer Reserve Police Department

    EIN 870748242 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Knoxville Wrestling Club

    EIN 475498106 · Headquarters: Knoxville, IA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Knoxville Youth Activities

    EIN 882287963 · Headquarters: Knoxville, IA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Knoxville Youth Football Inc

    EIN 202415481 · Headquarters: Knoxville, IA, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  85. Lincoln Cemetery

    EIN 821987285 · Headquarters: Knoxville, IA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Little League Baseball Inc

    EIN 222605103 · Headquarters: KNOXVILLE, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Marion County Coalition for Suicide Prevention Inc

    EIN 841862246 · Headquarters: Knoxville, IA, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Marion County Community Foundation

    EIN 562529370 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Marion County Genealogical Society

    EIN 421110439 · Headquarters: Knoxville, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Marion County Historical Society

    EIN 421066795 · Headquarters: Knoxville, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Marion County Humane Society

    EIN 421284651 · Headquarters: KNOXVILLE, IA, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Marion County Sportsmen Club

    EIN 421050349 · Headquarters: KNOXVILLE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Marion County United Way

    EIN 420884706 · Headquarters: Knoxville, IA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Active and Retired Federal Employees Association

    EIN 426124948 · Headquarters: KNOXVILLE, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Society of the Children of the American Revolution

    EIN 993002340 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Society of the Daughters of the American Revolution

    EIN 900861729 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Sprint Car Hall of Fame and Museum Foundation Inc

    EIN 421276468 · Headquarters: KNOXVILLE, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  98. Natl Assn of Veterans Admin Chiefs of Staff Inc

    EIN 421202264 · Headquarters: Knoxville, IA, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  99. Optimist International

    EIN 421418022 · Headquarters: Knoxville, IA, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  100. Order of the Easter Star of Iowa

    EIN 237548205 · Headquarters: Knoxville, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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