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San Diego Geological Society

  • San Diego, CA
  • Tax-exempt since Feb. 2009
  • EIN: 26-3864747

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Science and Technology Research Institutes, Services / Geology (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$57.3k (2024)

Expenses
$53.4k (2024)

Total Assets
$23.2k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2012 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$57,292
Expenses
$53,421
Net Income
$3,871
Net Assets
$23,168
Notable Sources of Revenue Percent of Total Revenue
Contributions $14,674
25.6%
Program Services $38,756
67.6%
Investment Income $7
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,430
2.5%
Other Revenue $0
Assets/Debt
Total Assets $23,168
Total Liabilities $0
Net Assets $23,168
Compensation
Key Employees and Officers Compensation Other
Monte Murbach (President) $0 $0
Chuck Houser (Vice President) $0 $0
Randy Wagner (Treasurer) $0 $0
Diane Murbach (Secretary) $0 $0
Todd Wirths (Board Member) $0 $0
Tom Kuper (Board Member) $0 $0
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Document Links

990-EZ
Filed on Nov. 14, 2024

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$40,762
Expenses
$41,758
Net Income
-$996
Net Assets
$19,297
Notable Sources of Revenue Percent of Total Revenue
Contributions $12,578
30.9%
Program Services $23,581
57.9%
Investment Income $71
0.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $2,977
7.3%
Other Revenue $0
Assets/Debt
Total Assets $19,297
Total Liabilities $0
Net Assets $19,297
Compensation
Key Employees and Officers Compensation Other
Bob Stroh (President) $0 $0
Todd Wirths (Vice President) $0 $0
Randy Wagner (Treasurer) $0 $0
Diane Murbach (Secretary) $0 $0
Monte Murbach (Board Member) $0 $0
Chuck Houser (Board Member) $0 $0
Luke Weidman (Program Chairman) $0 $0
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Document Links

990-EZ
Filed on Nov. 14, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$18,286
Expenses
$19,972
Net Income
-$1,686
Net Assets
$20,293
Notable Sources of Revenue Percent of Total Revenue
Contributions $11,028
60.3%
Program Services $5,648
30.9%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $204
1.1%
Other Revenue $0
Assets/Debt
Total Assets $20,293
Total Liabilities $0
Net Assets $20,293
Compensation
Key Employees and Officers Compensation Other
Bob Stroh (President) $0 $0
Todd Wirths (Vice President) $0 $0
Randy Wagner (Treasurer) $0 $0
Diane Murbach (Secretary) $0 $0
Monte Murbach (Director Of Memberships) $0 $0
Chuck Houser (Director Of Publications) $0 $0
Luke Weidman (Program Chairman) $0 $0
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Document Links

990-EZ
Filed on Nov. 15, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$13,462
Expenses
$17,378
Net Income
-$3,916
Net Assets
$21,979
Notable Sources of Revenue Percent of Total Revenue
Contributions $7,405
55.0%
Program Services $2,603
19.3%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,607
11.9%
Other Revenue $0
Assets/Debt
Total Assets $21,979
Total Liabilities $0
Net Assets $21,979
Compensation
Key Employees and Officers Compensation Other
Bob Stroh (President) $0 $0
Todd Wirths (Vice President) $0 $0
Randy Wagner (Treasurer) $0 $0
Diane Murbach (Secretary) $0 $0
Monte Murbach (Director Of Memberships) $0 $0
Chuck Houser (Director Of Publications) $0 $0
Luke Weidman (Program Chairman) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 15, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$41,608
Expenses
$36,546
Net Income
$5,062
Net Assets
$25,896
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,533
13.3%
Program Services $33,524
80.6%
Investment Income $27
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,364
3.3%
Other Revenue $0
Assets/Debt
Total Assets $25,896
Total Liabilities $0
Net Assets $25,896

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF
PDF (2 of 2)

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$28,498
Expenses
$26,266
Net Income
$2,232
Net Assets
$20,833
Notable Sources of Revenue Percent of Total Revenue
Contributions $3,475
12.2%
Program Services $24,374
85.5%
Investment Income $2
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales -$544
Other Revenue $0
Assets/Debt
Total Assets $20,833
Total Liabilities $0
Net Assets $20,833

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$36,606
Expenses
$33,995
Net Income
$2,611
Net Assets
$18,601
Notable Sources of Revenue Percent of Total Revenue
Contributions $6,253
17.1%
Program Services $25,519
69.7%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $3,243
8.9%
Other Revenue $0
Assets/Debt
Total Assets $18,601
Total Liabilities $0
Net Assets $18,601

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$29,680
Expenses
$33,386
Net Income
-$3,706
Net Assets
$15,990
Notable Sources of Revenue Percent of Total Revenue
Contributions $6,515
22.0%
Program Services $28,968
97.6%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales -$7,894
Other Revenue $0
Assets/Debt
Total Assets $15,990
Total Liabilities $0
Net Assets $15,990

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$31,540
Expenses
$27,873
Net Income
$3,667
Net Assets
$19,695
Notable Sources of Revenue Percent of Total Revenue
Contributions $7,309
23.2%
Program Services $21,746
68.9%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $924
2.9%
Other Revenue $0
Assets/Debt
Total Assets $19,695
Total Liabilities $0
Net Assets $19,695

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$33,638
Expenses
$34,585
Net Income
-$947
Net Assets
$16,028
Notable Sources of Revenue Percent of Total Revenue
Contributions $9,210
27.4%
Program Services $22,216
66.0%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $555
1.6%
Other Revenue $0
Assets/Debt
Total Assets $16,028
Total Liabilities $0
Net Assets $16,028

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$31,423
Expenses
$29,771
Net Income
$1,652
Net Assets
$16,974
Notable Sources of Revenue Percent of Total Revenue
Contributions $4,506
14.3%
Program Services $28,467
90.6%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales -$3,471
Other Revenue $0
Assets/Debt
Total Assets $16,974
Total Liabilities $0
Net Assets $16,974

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$26,952
Expenses
$26,371
Net Income
$581
Net Assets
$15,322
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,913
21.9%
Program Services $20,502
76.1%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales -$835
Other Revenue $0
Assets/Debt
Total Assets $15,322
Total Liabilities $0
Net Assets $15,322

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF
PDF (2 of 3) PDF (3 of 3)

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$34,775
Expenses
$29,441
Net Income
$5,334
Net Assets
$14,741
Notable Sources of Revenue Percent of Total Revenue
Contributions $6,275
18.0%
Program Services $21,114
60.7%
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $5,259
15.1%
Other Revenue $0
Assets/Debt
Total Assets $14,741
Total Liabilities $0
Net Assets $14,741

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2011

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF
PDF (2 of 2)

Fiscal Year Ending June
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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