Nonprofits in Olmsted, Illinois

Nonprofits in Olmsted, Illinois. Browse 2 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. Mound City National Cemetery Preservation Commission

    EIN 371335188 · Headquarters: Olmsted, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Olmsted Historical Society

    EIN 371333682 · Headquarters: Olmsted, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N