Data update history
June 6, 2024
Posted financials
Added Form 990 for fiscal year 2023
May 23, 2024
Updated personnel
Identified 2 new personnel
July 30, 2023
Posted financials
Added Form 990 for fiscal year 2022
July 6, 2023
Updated personnel
Identified 3 new personnel
July 6, 2022
Posted financials
Added Form 990 for fiscal year 2021
Nonprofit Types
SchoolsLibraries and archivesCharities
Issues
Education
Characteristics
MembershipsState / local levelReceives government fundingTax deductible donationsAccepts online donations
General information
- Address
- 33 Boston Post Rd W 400
- Marlborough, MA 01752
- Metro area
- Boston-Cambridge-Newton, MA-NH
- County
- Middlesex County, MA
- Website URL
- masslibsystem.org/Â
- Phone
- (508) 357-2121
- Facebook page
- MassLibrarySystemÂ
- Twitter profile
- @masslibsystemÂ
IRS details
- EIN
- 04-3387698
- Fiscal year end
- June
- Taxreturn type
- Form 990
- Year formed
- 1997
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- B70: Libraries, Library Science
- NAICS code, primary
- 51912: Libraries and Archives
- Parent/child status
- Independent
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