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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Organizations Arts, Culture & Humanities Museum of Sonoma County

Museum of Sonoma County

Fiscal year ending 2024. Filed on October 31, 2025.

425 Seventh Street
Santa Rosa, California 95401

Museum of Sonoma County (EIN: 94-2506626) has filed an IRS Form 990 between fiscal years 2016 and 2024. In its fiscal year 2024 IRS Form 990 filing, Museum of Sonoma County, a 501(c)(3) charitable organization, reported compensation for 1 out of 16 total employees. Among the employees shown here, the average compensation is $113,256. The highest compensated employee at Museum of Sonoma County is Jeff Nathanson with fiscal year 2024 compensation of $113,256.

Revenue, expenses, and employee compensation

Revenue

$1,329,801

Expenses

$1,497,328

Employee compensation

$708,127
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Jeff Nathanson
Executive Director END 6/24
$113,256
$113,256 No related compNo other comp

Benchmark Employee Compensation

Non-Employee Board Members

Anne Peterson
Director
Chris Mazzia
Director END 6/24
Chris Nugent
Director
David Salm
Director
Diane Sosos
Director END 5/24
Ernesto Olivares
Director END 3/24
Estelle H Rogers
Chair
Henry Beaumont
Treasurer
Jennifer Burke
Director Start 11/24
Jeremy Nichols
Director
Margaret Purser
Secretary
Melanie Jones-Carter
Vice Chair

Mission Statement

THE MUSEUM OF SONOMA COUNTY ENGAGES AND INSPIRES OUR DIVERSE COMMUNITY WITH ART AND HISTORY EXHIBITIONS, COLLECTIONS, AND PUBLIC PROGRAMS THAT ARE INCLUSIVE, EDUCATIONAL, AND RELEVANT.

Revisions to this organization profile

October 31, 2025:
2024 Museum of Sonoma County 990 filed
May 27, 2025:
Amended (originally filed November 1, 2024)2023 Museum of Sonoma County 990 filed
October 12, 2023:
2022 Museum of Sonoma County 990 filed

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Children's Museum of Sonoma County
Santa Rosa, California