Nonprofits in Willow Lake, South Dakota

Nonprofits in Willow Lake, South Dakota. Browse 12 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. 4-H Clubs & Affiliated 4-H Organizations

    EIN 061830554 · Headquarters: Willow Lake, SD, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  2. American Legion

    EIN 466014721 · Headquarters: Willow Lake, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  3. Good Hope Cementary Inc

    EIN 460421536 · Headquarters: Willow Lake, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. International Association of Lions Clubs

    EIN 237117208 · Headquarters: WILLOW LAKE, SD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Jakob Hohm Off Road Adventures

    EIN 823472337 · Headquarters: WILLOW LAKE, SD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Mayfield School

    EIN 363312186 · Headquarters: WILLOW LAKE, SD, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  7. Slew Crew Ranch Rodeo

    EIN 862100475 · Headquarters: WILLOW LAKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. South Dakota Hereford Association

    EIN 460229985 · Headquarters: WILLOW LAKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Willow Lake Area Advancement

    EIN 204662248 · Headquarters: WILLOW LAKE, SD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Willow Lake Community Daycare

    EIN 460462710 · Headquarters: WILLOW LAKE, SD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Willow Lake Community Museum- Library

    EIN 460460570 · Headquarters: Willow Lake, SD, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  12. Willow Lake Volunteer Fire Department Inc

    EIN 921832722 · Headquarters: Willow Lake, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N