Data update history
June 29, 2023
Posted financials
Added Form 990 for fiscal year 2020
June 5, 2023
Updated personnel
Identified 1 new personnel
October 5, 2021
Posted financials
Added Form 990 for fiscal year 2019
September 23, 2021
Updated personnel
Identified 1 new personnel
April 30, 2021
Posted financials
Added Form 990 for fiscal year 2018
Nonprofit Types
Public utilitiesPublic sector nonprofits
Issues
No issues found
Characteristics
Political advocacyNo full-time employees
General information
- Address
- PO Box 577
- Fulton, CA 95439
- Metro area
- Santa Rosa-Petaluma, CA
- County
- Sonoma County, CA
- Phone
- (707) 536-1250
IRS details
- EIN
- 94-6103505
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1957
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- W80: Public Utilities
- NAICS code, primary
- 2213: Water, Sewage, and Air Systems
- Parent/child status
- Independent
Free account sign-up
Want updates when Willowside Mutual Water Company has new information, or want to find more organizations like Willowside Mutual Water Company?
Create free Cause IQ account