Nonprofits in Sioux City, Iowa

Nonprofits in Sioux City, Iowa. Browse 615 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. Western States Wrestling Club Inc

    EIN 731714642 · Headquarters: Sioux City, IA, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  2. Wildlife Lodge & Clinic

    EIN 421520281 · Headquarters: SIOUX CITY, IA, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Wilson Trailer Co Employee Benefit Plan Employee Health Care Fund

    EIN 421172922 · Headquarters: SIOUX CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Wilson Trailer Company Healthcare Plan for S Employees

    EIN 900218218 · Headquarters: SIOUX CITY, IA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Wolpert Family Foundation

    EIN 421431227 · Headquarters: SIOUX CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. Women Aware

    EIN 421164702 · Headquarters: SIOUX CITY, IA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Woodbury Co Conservation Foundation

    EIN 421354176 · Headquarters: SIOUX CITY, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Woodbury County Bar Association

    EIN 420527215 · Headquarters: Sioux City, IA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Woodbury County Courthouse Foundation

    EIN 421435649 · Headquarters: Sioux City, IA, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  10. Woodbury County Deputy Sheriff's Association

    EIN 421323249 · Headquarters: SIOUX CITY, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Woodbury County Expo Center

    EIN 204531197 · Headquarters: SIOUX CITY, IA, USA · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990

  12. Woodbury County Genealogical Society

    EIN 421205008 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Woodbury Medical Society

    EIN 426072458 · Headquarters: SIOUX CITY, IA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  14. Woodbury Woodys

    EIN 262817368 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  15. York Rite Sovereign College of North America

    EIN 383748976 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

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