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Nonprofit · EIN 39-6077242

ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY

Tax-exempt · MILWAUKEE, WI 53226

Financials

$12.2M$12.8M2023$13M$14.7M2024$14.1M$16.8M2025
Revenue Expenses · by fiscal year end
Financials of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$14,059,943$16,809,299-$2,749,356$16,736,798$8,682,149$8,054,649
December 31, 2024990$13,032,943$14,662,609-$1,629,666$17,662,694$6,858,706$10,803,988
December 31, 2023990$12,217,753$12,845,596-$627,843$17,325,828$4,448,969$12,876,859
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$12,769,439
Membership dues
$7,833,911
Program service revenue
$581,410
Investment income
$835,923
Net gain from sales of assets
-$56,746
Net income from fundraising events
-$139,842
Net income from sales of inventory
$13,013
Other revenue
-$126,829

Expenses

Grants and similar amounts paid
$4,337,159
Compensation of officers, directors and key employees
$558,383
Other salaries and wages
$3,334,505
Salaries, compensation and benefits (total)
$5,015,034
Professional fundraising fees
$0
Legal fees
$38,228
Accounting fees
$33,200
Travel
$24,326
Depreciation
$134,480
Program services (functional)
$12,232,766
Management and general (functional)
$3,695,162
Fundraising (functional)
$881,371

Balance sheet and other

Total assets, start of year
$17,662,694
Total assets, end of year
$16,736,798
Total liabilities, end of year
$8,682,149
Net assets, end of year
$8,054,649
Land, buildings and equipment
$334,941
Publicly traded securities
$7,756,399
Net assets without donor restrictions
$1,974,491
Net assets with donor restrictions
$6,080,158
Gross receipts
$17,565,267
Employees
121
Volunteers
456
Year formed
1910
State of legal domicile
WI

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
JODI GIBSONPRESIDENT AND CEO
Officer
40$314,077$31,391
JENNIFER MUELLERCHIEF REVENUE DEVELOPMENT
Highest-paid employee
40$182,989$48,987
JASON KOEHLERCHIEF FINANCIAL OFFICER
Officer
40$155,280$45,848
ELIZABETH HELLERVP - PROGRAMS
Highest-paid employee
40$145,977$8,888
TAMI GARRISONCHAIR
Trustee or director, Officer
1$0$0
JOHN KISSINGERVICE CHAIR
Trustee or director, Officer
1$0$0
PEGGY KELSEYSECRETARY
Trustee or director, Officer
1$0$0
JON SOHNTREASURER
Trustee or director, Officer
1$0$0
DEREK TYUSIMMEDIATE PAST CHAIR
Trustee or director
1$0$0
ROB BERESDIRECTOR
Trustee or director
1$0$0
MARK BERKOFFDIRECTOR
Trustee or director
1$0$0
JANETTE BRAVERMANDIRECTOR
Trustee or director
1$0$0
PRESTON COLEDIRECTOR
Trustee or director
1$0$0
SUSAN DOYLEDIRECTOR
Trustee or director
1$0$0
JASON FATHALLAHDIRECTOR
Trustee or director
1$0$0
27 more people on this return
NameTitleHours / weekCompensation
SEAN FINNIGANDIRECTOR
Trustee or director
1$0
JOE FROHNADIRECTOR
Trustee or director
1$0
MARIA GONZALEZ KNAVELDIRECTOR
Trustee or director
1$0
MARGARET HARRISDIRECTOR
Trustee or director
1$0
NEZIH HASANOGLUDIRECTOR
Trustee or director
1$0
JUDY HOLZ STATHASDIRECTOR
Trustee or director
1$0
EMORY IRELANDDIRECTOR
Trustee or director
1$0
CHRISTINE IRGENSDIRECTOR
Trustee or director
1$0
TODD JONESDIRECTOR
Trustee or director
1$0
MARK KASSDIRECTOR
Trustee or director
1$0
JOHN KELLERMANDIRECTOR
Trustee or director
1$0
DAN KEMPKENDIRECTOR
Trustee or director
1$0
JOE KRESLDIRECTOR
Trustee or director
1$0
CAROLINE KRIDERDIRECTOR
Trustee or director
1$0
JENNA KUNDEDIRECTOR
Trustee or director
1$0
DR DEMOND MEANSDIRECTOR
Trustee or director
1$0
KAT MORROWDIRECTOR
Trustee or director
1$0
KRISTIN OCCHETTIDIRECTOR
Trustee or director
1$0
JON CROWELLDIRECTOR
Trustee or director
1$0
JOE ROCKDIRECTOR
Trustee or director
1$0
CHUCK ROEDELDIRECTOR
Trustee or director
1$0
BARRY SATTELLDIRECTOR
Trustee or director
1$0
RICK SCHMIDTDIRECTOR
Trustee or director
1$0
ROGER SMITHDIRECTOR
Trustee or director
1$0
DAVE STRELITZDIRECTOR
Trustee or director
1$0
TONY STANIAKDIRECTOR
Trustee or director
1$0
JAMES WARDDIRECTOR
Trustee or director
1$0
990 for the year ended December 31, 2024: 44 people
NameTitleHours / weekCompensationOther / benefits
JODI GIBSONPRESIDENT AND CEO
Officer
40$311,871$28,017
JENNIFER MUELLERCHIEF REVENUE DEVELOPMENT OFFICER
Highest-paid employee
40$172,783$39,586
JASON KOEHLERCFO - PART YEAR
Officer
40$123,025$30,321
BETH HELLERVP - PROGRAMS
Highest-paid employee
40$139,418$7,910
KATE HALFWASSENCFO - PART YEAR
Officer
40$2,030$0
DEREK TYUSCHAIR
Trustee or director, Officer
1$0$0
TAMI SCULLY GARRISONVICE CHAIR AND CHAIR ELECT
Trustee or director, Officer
1$0$0
JOHN KISSINGERVICE CHAIR
Trustee or director, Officer
1$0$0
PEGGY KELSYSECRETARY
Trustee or director, Officer
1$0$0
JOHN SOHNTREASURER
Trustee or director, Officer
1$0$0
JAY MCKENNAIMMEDIATE PAST CHAIR
Trustee or director
1$0$0
MARK A BERKOFFDIRECTOR
Trustee or director
1$0$0
ROB BERESDIRECTOR
Trustee or director
1$0$0
JANETTE BRAVERMANDIRECTOR
Trustee or director
1$0$0
JASON FATHALLAHDIRECTOR
Trustee or director
1$0$0
JOE FROHNADIRECTOR
Trustee or director
1$0$0
MARIA GONZALEZ KNAVELDIRECTOR
Trustee or director
1$0$0
MARGARET HARRISDIRECTOR
Trustee or director
1$0$0
NEZIH HASANOGLUDIRECTOR
Trustee or director
1$0$0
TANYA HINESDIRECTOR
Trustee or director
1$0$0
EMORY IRELANDDIRECTOR
Trustee or director
1$0$0
CHRISTINE IRGENSDIRECTOR
Trustee or director
1$0$0
JOHN KELLERMANDIRECTOR
Trustee or director
1$0$0
DAN KEMPKENDIRECTOR
Trustee or director
1$0$0
JOE KRESLDIRECTOR
Trustee or director
1$0$0
CAROLINE KRIDERDIRECTOR
Trustee or director
1$0$0
JENNA KUNDEDIRECTOR
Trustee or director
1$0$0
DR DEMOND MEANSDIRECTOR
Trustee or director
1$0$0
KAT MORROWDIRECTOR
Trustee or director
1$0$0
KRISTIN OCCHETTIDIRECTOR
Trustee or director
1$0$0
SCOTT REDLINGERDIRECTOR
Trustee or director
1$0$0
HAROLD REDMANDIRECTOR
Trustee or director
1$0$0
DON ROBERTSONDIRECTOR
Trustee or director
1$0$0
JOE ROCKDIRECTOR
Trustee or director
1$0$0
CHUCK ROEDELDIRECTOR
Trustee or director
1$0$0
BARRY SATTELLDIRECTOR
Trustee or director
1$0$0
RICK SCHMIDTDIRECTOR
Trustee or director
1$0$0
ROGER SMITHDIRECTOR
Trustee or director
1$0$0
TONY STANIAKDIRECTOR
Trustee or director
1$0$0
JUDY HOLZ STATHASDIRECTOR
Trustee or director
1$0$0
MATT SWENTKOFSKEDIRECTOR
Trustee or director
1$0$0
DAVE STRELITZDIRECTOR
Trustee or director
1$0$0
JAMES WARDDIRECTOR
Trustee or director
1$0$0
WENDELL WILLISDIRECTOR
Trustee or director
1$0$0
990 for the year ended December 31, 2023: 46 people
NameTitleHours / weekCompensationOther / benefits
JODI GIBSONPRESIDENT/CEO/DIRECTOR
Officer
40$270,526$24,316
PENNY GUTEKUNSTVP-DEVELOPMENT
Highest-paid employee
40$258,098$21,804
ROBIN HIGGINSVP - MEMBERSHIP
Highest-paid employee
40$182,710$9,262
KATE HALFWASSENCFO
Officer
40$136,592$40,722
BETH HELLERVP - PROGRAMS
Highest-paid employee
40$139,803$7,889
DEREK TYUSCHAIR
Trustee or director, Officer
1$0$0
TAMI SCULLY GARRISONVICE CHAIR
Trustee or director, Officer
1$0$0
JOHN KISSINGERVICE CHAIR
Trustee or director, Officer
1$0$0
PEGGY KELSYSECRETARY
Trustee or director, Officer
1$0$0
JOHN SOHNTREASURER
Trustee or director, Officer
1$0$0
JAY MCKENNAIMMEDIATE PAST CHAIR
Trustee or director
1$0$0
MARK A BERKOFFDIRECTOR
Trustee or director
1$0$0
ROB BERESDIRECTOR
Trustee or director
1$0$0
JANETTE BRAVERMANDIRECTOR
Trustee or director
1$0$0
JASON FATHALLAHDIRECTOR
Trustee or director
1$0$0
JOE FROHNADIRECTOR
Trustee or director
1$0$0
MARIA GONZALEZ KNAVELDIRECTOR
Trustee or director
1$0$0
MARGARET HARRISDIRECTOR
Trustee or director
1$0$0
NEZIH HASANOGLUDIRECTOR
Trustee or director
1$0$0
TANYA HINESDIRECTOR
Trustee or director
1$0$0
DUSTIN HINTONDIRECTOR
Trustee or director
1$0$0
EMORY IRELANDDIRECTOR
Trustee or director
1$0$0
CHRISTINE IRGENSDIRECTOR
Trustee or director
1$0$0
JOHN KELLERMANDIRECTOR
Trustee or director
1$0$0
DAN KEMPKENDIRECTOR
Trustee or director
1$0$0
RUSS KOHLDIRECTOR
Trustee or director
1$0$0
JOE KRESLDIRECTOR
Trustee or director
1$0$0
CAROLINE KRIDERDIRECTOR
Trustee or director
1$0$0
JENNA KUNDEDIRECTOR
Trustee or director
1$0$0
TONY MARINODIRECTOR
Trustee or director
1$0$0
DR DEMOND MEANSDIRECTOR
Trustee or director
1$0$0
TOM MILLERDIRECTOR
Trustee or director
1$0$0
KAT MORROWDIRECTOR
Trustee or director
1$0$0
SCOTT REDLINGERDIRECTOR
Trustee or director
1$0$0
HAROLD REDMANDIRECTOR
Trustee or director
1$0$0
DON ROBERTSONDIRECTOR
Trustee or director
1$0$0
JOE ROCKDIRECTOR
Trustee or director
1$0$0
CHUCK ROEDELDIRECTOR
Trustee or director
1$0$0
BARRY SATTELLDIRECTOR
Trustee or director
1$0$0
RICK SCHMIDTDIRECTOR
Trustee or director
1$0$0
ROGER SMITHDIRECTOR
Trustee or director
1$0$0
TONY STANIAKDIRECTOR
Trustee or director
1$0$0
JODY HOLZ STATHASDIRECTOR
Trustee or director
1$0$0
DAVE STRELITZDIRECTOR
Trustee or director
1$0$0
JAMES WARDDIRECTOR
Trustee or director
1$0$0
WILLIS WENDELLDIRECTOR
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
10005 W BLUEMOUND RD, MILWAUKEE, WI 53226-4346
Principal officer (990 for 2025)
JASON KOEHLER, 10005 WEST BLUEMOUND ROAD, MILWAUKEE, WI 53226
Signed the 990
JASON KOEHLER, CHIEF FINANCIAL OFFICER
Phone
(414) 258-2333
Return prepared by
REILLY PENNER & BENTON LLP

Mission

THE MISSION OF THE ZOOLOGICAL SOCIETY IS TO CONSERVE WILDLIFE AND ENDANGERED SPECIES, TO EDUCATE PEOPLE ABOUT THE IMPORTANCE OF WILDLIFE AND THE ENVIRONMENT, AND TO SUPPORT THE MILWAUKEE COUNTY ZOO.

990 for the year ended December 31, 2025

Program accomplishments

  • DIRECT SUPPORT OF MILWAUKEE COUNTY ZOO THROUGH CONSTRUCTION OF EXHIBITS, ANIMAL CONSERVATION, AND EDUCATIONAL PROGRAMS.
    Expenses $12,098,609 · grants $4,306,049 · revenue $537,639
  • RESEARCH GRANTS FOR ADVANCED STUDIES IN CONSERVATION AND ENDANGERED SPECIES.
    Expenses $134,157 · grants $31,110

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
39-6077242
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1956
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Animal-related (D115)
Assets (IRS master file)
$16,736,798
Income (IRS master file)
$17,565,267

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$14,059,943$16,809,299$16,736,798XML
990December 2024$13,032,943$14,662,609$17,662,694XML
990December 2023$12,217,753$12,845,596$17,325,828XML
990December 2022$2,889,576$2,933,236$17,515,542IRS
990September 2022$16,366,634$11,867,102$17,363,245IRS
990September 2021–––IRS
990September 2020–––IRS
990September 2019–––IRS
990September 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 39-6077242).

Questions about ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY

What is the EIN of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY?
The employer identification number (EIN) of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY is 39-6077242.
Is ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1956.
Are donations to ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY?
The 990 for the year ended December 31, 2025 names JASON KOEHLER.
Who are the officers and directors of ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY?
The 990 for the year ended December 31, 2025 lists 42 people; 4 received compensation from the organization, the highest $314,077 (JODI GIBSON, PRESIDENT AND CEO).
How much revenue does ZOOLOGICAL SOCIETY OF MILWAUKEE COUNTY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $14,059,943, expenses of $16,809,299 and total assets of $16,736,798 at year end.

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