- Is Western Sonoma County Historical Society a tax-exempt 501(c)(3)?
- Yes. Western Sonoma County Historical Society is recognised by the IRS as a 501(c)(3) organisation (EIN 94-2457091). The IRS recognised Western Sonoma County Historical Society as tax-exempt in March 1978.
- What is Western Sonoma County Historical Society's EIN?
- Western Sonoma County Historical Society's Employer Identification Number (EIN) is 94-2457091. The EIN was assigned by the IRS in March 1978. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Western Sonoma County Historical Society do?
- The purpose of the Western Sonoma County Historical Society (WSCHS) is to preserve the history of Western Sonoma County by archiving photographs, artifacts, oral histories, and by the preservation of historic buildings. WSCHS also operates a Museum located in a 1917 Railroad…
- Where is Western Sonoma County Historical Society located?
- Western Sonoma County Historical Society is located at 261 South Main Street, Sebastopol, CA, 95472.
- When was Western Sonoma County Historical Society founded or recognised by the IRS?
- Western Sonoma County Historical Society was recognised by the IRS as a tax-exempt organisation in March 1978. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is Western Sonoma County Historical Society's annual revenue?
- On its most recent Form 990 (fiscal year 2025), Western Sonoma County Historical Society reported $61K in total revenue and $48K in total expenses.
- Has Western Sonoma County Historical Society been auto-revoked by the IRS?
- No. Western Sonoma County Historical Society (EIN 94-2457091) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.
- Is Western Sonoma County Historical Society listed in IRS Publication 78?
- Yes. Western Sonoma County Historical Society is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.
