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American Postal Workers Union

6266 604 605 Area Local
  • Hickory Hills, IL
  • Tax-exempt since Nov. 1973
  • EIN: 36-3027012

Organization summary

Type of Nonprofit

Designated as a Labor, agricultural and horticultural organizations that are educational or instructive, including unions, created for the purpose of improving conditions of work, and products of efficiency.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$175k (2024)

Expenses
$171k (2024)

Total Assets
$12.4k (2024)

Total Liabilities
$2.84k (2024)

Years with missing data
Source: Form 990 tax filings from 2011 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 Dec.
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$175,358
Expenses
$171,083
Net Income
$4,275
Net Assets
$9,545
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $12,384
Total Liabilities $2,839
Net Assets $9,545
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (President) $28,916 $0
Cathy Buchler (Treasurer) $25,626 $0
William Enochs (Vice President) $11,952 $0
Carol Gustafson (Secretary) $11,475 $0
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Document Links

990-EZ
Filed on Nov. 14, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$177,682
Expenses
$177,080
Net Income
$602
Net Assets
$5,271
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $7,857
Total Liabilities $2,586
Net Assets $5,271
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (President) $32,336 $0
Cathy Buchler (Treasurer) $31,461 $0
Carol Gustafson (Secretary) $12,955 $0
William Enochs (Vice President) $12,756 $0
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Document Links

990-EZ
Filed on Nov. 15, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$169,195
Expenses
$170,320
Net Income
-$1,125
Net Assets
$9,260
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $13,005
Total Liabilities $3,745
Net Assets $9,260
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (President) $28,125 $0
Cathy Buchler (Treasurer) $21,636 $0
Linda Pastregna (Vice President) $15,293 $0
William Enochs (Vice President) $11,481 $0
Carol Gustafson (Secretary) $8,502 $0
Walter Maney (Legislative Dir) $257 $0
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Document Links

990-EZ
Filed on Nov. 14, 2022

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$162,135
Expenses
$170,832
Net Income
-$8,697
Net Assets
$10,385
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $14,269
Total Liabilities $3,884
Net Assets $10,385

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$158,351
Expenses
$154,183
Net Income
$4,168
Net Assets
$19,081
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $22,070
Total Liabilities $2,989
Net Assets $19,081
Compensation
Key Employees and Officers Compensation Other
Linda Pastregna (Vice President) $22,075 $0
Charles Mauerer Jr (President) $16,992 $0
William Enochs (President) $13,811 $0
Cathy Buchler (Treasurer) $13,052 $0
Michael Swartz (Secretary) $6,541 $0
Walter Maney (Legislative Dir) $2,292 $0
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Document Links

990-EZ
Filed on Nov. 16, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$168,292
Expenses
$178,667
Net Income
-$10,375
Net Assets
$14,914
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $18,587
Total Liabilities $3,673
Net Assets $14,914
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (Vice President) $31,138 $0
Cathy Buchler (Treasurer) $26,175 $0
William Enochs (President) $16,563 $0
Walter Maney (Legislative Dir) $2,319 $0
Michael Swartz (Secretary) $2,089 $0
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Document Links

990-EZ
Filed on Nov. 6, 2019

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$166,885
Expenses
$168,349
Net Income
-$1,464
Net Assets
$25,289
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $28,202
Total Liabilities $2,913
Net Assets $25,289
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (Vice President) $33,838 $0
Cathy Buchler (Treasurer) $32,283 $0
William Enochs (President) $16,594 $0
Michael Swartz (Secretary) $3,606 $0
Walter Maney (Legislative Dir) $1,947 $0
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Document Links

990-EZ
Filed on Nov. 15, 2018

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$158,541
Expenses
$157,762
Net Income
$779
Net Assets
$26,753
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $29,230
Total Liabilities $2,477
Net Assets $26,753
Compensation
Key Employees and Officers Compensation Other
Charles Mauerer Jr (Vice President) $29,161 $0
Cathy Buchler (Treasurer) $28,676 $0
William Enochs (President) $11,391 $0
Michael Swartz (Secretary) $3,126 $0
Walter Maney (Legislative Dir) $2,083 $0
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Document Links

990-EZ
Filed on Nov. 13, 2017

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$159,711
Expenses
$153,892
Net Income
$5,819
Net Assets
$25,974
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $28,392
Total Liabilities $2,418
Net Assets $25,974
Compensation
Key Employees and Officers Compensation Other
Cathy Buchler (Treasurer) $27,101 $0
Charles Mauerer Jr (Vice President) $24,410 $0
William Enochs (President) $15,057 $0
Michael Swartz (Secretary) $2,199 $0
Walter Maney (Legislative Dir) $1,541 $0
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Document Links

990-EZ
Filed on Nov. 15, 2016

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$162,759
Expenses
$154,994
Net Income
$7,765
Net Assets
$20,155
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $22,921
Total Liabilities $2,766
Net Assets $20,155
Compensation
Key Employees and Officers Compensation Other
Cathy Buchler (Treasurer) $29,512 $0
Charles Mauerer Jr (Vice President) $21,897 $0
William Enochs (President) $18,873 $0
Michael Swartz (Secretary) $1,103 $0
Jeri Mrowczynski (Cor. Sec.) $855 $0
Walter Maney (Legislative Dir) $321 $0
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Document Links

990-EZ
Filed on Nov. 11, 2015

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$161,072
Expenses
$158,154
Net Income
$2,918
Net Assets
$12,390
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $15,595
Total Liabilities $3,205
Net Assets $12,390

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$185,370
Expenses
$174,726
Net Income
$10,644
Net Assets
$11,879
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $14,802
Total Liabilities $2,923
Net Assets $11,879

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
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

Fiscal Year Ending Dec.
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

Fiscal Year Ending Dec.
2008

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 Dec.
2007

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

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

PDF

Fiscal Year Ending Dec.
2006

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

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

PDF

Fiscal Year Ending Dec.
2005

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

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

PDF

Fiscal Year Ending Dec.
2004

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

Primary 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.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

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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.

Updated