Nonprofits in Mason City, Iowa

Nonprofits in Mason City, Iowa. Browse 255 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. Parents United of North Central Iowa Inc

    EIN 421208428 · Headquarters: MASON CITY, IA, USA · Employment · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  2. Persevering One Step at a Time Foundation

    EIN 333940023 · Headquarters: MASON CITY, IA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Pink & Teal Warriors

    EIN 934050670 · Headquarters: MASON CITY, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Pioneer Museum & Historical Society

    EIN 426077319 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Planting Seeds of Kindness Trust

    EIN 426411286 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  6. Prairie Place on 1St Inc

    EIN 474394134 · Headquarters: MASON CITY, IA, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990

  7. Prairie Ridge Integrated Behavioral Healthcare

    EIN 420947309 · Headquarters: MASON CITY, IA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Rifle & Pistol Club River City

    EIN 420936848 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. River City House of Prayer

    EIN 812930131 · Headquarters: Mason City, IA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. River City Sculptures on Parade In

    EIN 460701185 · Headquarters: MASON CITY, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. River City Society for Historic Preservation

    EIN 421310777 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Riverhawk Wrestling Club

    EIN 884172182 · Headquarters: MASON CITY, IA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Roosevelt Elementary School Parent Teacher Organization

    EIN 200153225 · Headquarters: Mason City, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Rotary International

    EIN 421354081 · Headquarters: MASON CITY, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Rotary International Mason City Rotary Club

    EIN 420674902 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  16. Royal and Select Masters of Iowa

    EIN 237510441 · Headquarters: Mason City, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Royal Arch Masons of Iowa

    EIN 237538413 · Headquarters: Mason City, IA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  18. Rudd Community Betterment Corporation

    EIN 421376181 · Headquarters: MASON CITY, IA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Sbrlfe

    EIN 863795853 · Headquarters: Mason City, IA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Senior Citizens Center

    EIN 426076072 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Shalom Tower Two Inc

    EIN 421135447 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  22. Simon Says Shoes

    EIN 332521277 · Headquarters: MASON CITY, IA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Special Kids Special Love Inc

    EIN 461504720 · Headquarters: MASON CITY, IA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  24. Special Opportunities Foundation Inc

    EIN 833964895 · Headquarters: MASON CITY, IA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  25. Stebens Children's Theatre

    EIN 421272073 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Stockman House Museum Foundation

    EIN 421524050 · Headquarters: MASON CITY, IA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Stomping Out Childhood Cancer

    EIN 842388157 · Headquarters: MASON CITY, IA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Strand North Central Foundation

    EIN 263858702 · Headquarters: MASON CITY, IA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Stratford Foundation

    EIN 421445433 · Headquarters: MASON CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Stuart D Nevermann Charitable Trust

    EIN 863965471 · Headquarters: MASON CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Studio of the Performing Arts

    EIN 421376183 · Headquarters: MASON CITY, IA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  32. T L C Broadcasting Corporation

    EIN 421096296 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Tall Corn Dental Symposium

    EIN 237002898 · Headquarters: Mason City, IA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Teachers for Students

    EIN 821223511 · Headquarters: Mason City, IA, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  35. The David & Phyllis Murphy Charitable Foundation

    EIN 421477942 · Headquarters: MASON CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. The Education Foundation of the Mason City Public Schools

    EIN 421450042 · Headquarters: MASON CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. The North Star Charitable Trust

    EIN 421499681 · Headquarters: MASON CITY, IA, USA · Science & Technology · Latest available filing year: 2015 · Primary form: IRS Form 990

  38. Thirty Couple Marathon

    EIN 421214605 · Headquarters: Mason City, IA, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. Toastmasters International

    EIN 421386442 · Headquarters: Mason City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Toastmasters International

    EIN 900118118 · Headquarters: Mason City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Tomson Family Foundation Trust

    EIN 356947483 · Headquarters: MASON CITY, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  42. Top of Iowa Chapter of American Prdctn & Invtry Control Society

    EIN 421317784 · Headquarters: Mason City, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  43. Una Vocis

    EIN 542182743 · Headquarters: Mason City, IA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  44. Union Labor Building Company

    EIN 420845739 · Headquarters: Mason City, IA, US · Employment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. United States Bowling Congress Inc

    EIN 202950981 · Headquarters: mason city, IA, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. United States Junior Chamber of Commerce

    EIN 911908839 · Headquarters: Mason City, IA, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  47. United Way of North Central Iowa

    EIN 420680431 · Headquarters: Mason City, IA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Ventura Community School District Foundation

    EIN 421471747 · Headquarters: MASON CITY, IA, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  49. Veterans of Foreign Wars 0733 Vfw

    EIN 420505564 · Headquarters: MASON CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Veterans of Foreign Wars of the United States Dept of Iowa

    EIN 421258269 · Headquarters: Mason City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Vietnam Veterans of America Inc

    EIN 391905345 · Headquarters: mason city, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Visit Mason City Inc

    EIN 452436698 · Headquarters: MASON CITY, IA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Wright on the Park Inc

    EIN 203306274 · Headquarters: MASON CITY, IA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Ymca and Rehabilitation Center

    EIN 421491491 · Headquarters: MASON CITY, IA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Youth for Christ of Central Iowa Inc

    EIN 260266740 · Headquarters: MASON CITY, IA, USA · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

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