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Zoos and acquariums

There are 383zoos in the United States. Combined, these zoosemploy 40,836 people, earn more than $4 billion in revenue each year, and have assets of $10 billion.
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Job trends for Zoos

Employees per organizationNumber of organizations
0
77
1-10
27
11-25
15
26-100
51
101 to 1,000
82
1,000+
4
Key takeaways for employment stats:

Sizes of zoos

Revenues per organizationNumber of organizations
< $250k
71
$250k to $1M
60
$1M to $5M
52
$5M to $25M
55
$25M to $100M
43
$100M+
4
Key takeaways for revenue stats:

Directory of zoos

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1-20 of 383

Conservation Society of California

Oakland Zoo, operated by the Conservation Society of California, inspires respect for the natural world and offers quality visitor experiences.
Revenue
$30.9m
Assets
$98.9m
Employees
443
EIN
94-1687847
IRS type
501(c)(3)

Association of Zoos and Aquariums

AZA advances zoological parks and aquariums through animal welfare, conservation education, and species conservation. Provides support, professional development, and educational information.
Revenue
$31.3m
Assets
$29.6m
Employees
49
EIN
55-0526930
IRS type
501(c)(3)

Lincoln Park Zoological Society

The Lincoln Park Zoological Society is created and organized, and shall be operated, exclusively for charitable, scientific, and educational purposes.
Revenue
$48.4m
Assets
$225.9m
Employees
511
EIN
36-2512404
IRS type
501(c)(3)

Commonwealth Zoological Corporation (CZC)

Zoo New England's mission is to inspire people to protect and sustain the natural world for future generations by creating fun and engaging experiences that integrate wildlife and conservation programs, research, and education.
Revenue
$31.5m
Assets
$58.0m
Employees
322
EIN
04-3129124
IRS type
501(c)(3)

Chicago Zoological Society

The mission of the Chicago Zoological Society is to inspire conservation leadership by connecting people with wildlife and nature. They had an international reputation for taking a cutting-edge role in animal care and conservation of the natural world.
Revenue
$94.3m
Assets
$265.2m
Employees
743
EIN
36-2167016
IRS type
501(c)(3)

Conservation Nation (FONZ)

Friends of the National Zoo (FONZ) is a not-for-profit corporation of individuals, families, and organizations dedicated to supporting the education, conservation, research, and recreation mission of the Smithsonian National Zoological Park.
Revenue
$645.3k
Assets
$6.9m
Employees
12
EIN
52-0853312
IRS type
501(c)(3)

San Diego Zoo Wildlife Alliance

International conservation nonprofit with two San Diego-based parks, dedicated to saving species by uniting animal care and science.
Revenue
$392.4m
Assets
$870.9m
Employees
4,317
EIN
95-1648219
IRS type
501(c)(3)

Woodland Park Zoo

Woodland Park Zoo saves animals and their habitats through conservation leadership and engaging experiences, inspiring people to learn, care and act.
Revenue
$61.4m
Assets
$77.0m
Employees
585
EIN
91-6070005
IRS type
501(c)(3)

Saint Louis Zoo Association

Saint Louis Zoo Association is a private nonprofit organization who works with the Zoo to provide leadership for fundraising, and they support conservation education, programming, facilities, government relations and special events.
Revenue
$30.5m
Assets
$188.6m
Employees
72
EIN
43-1727309
IRS type
501(c)(3)

Sacramento Zoological Society

Since its inception, Sacramento Zoological Society has served as the fund-raising organization for the zoo, providing funds for animal care, education and conservation programs.
Revenue
$13.2m
Assets
$24.4m
Employees
142
EIN
94-2861667
IRS type
501(c)(3)

Indianapolis Zoological

Indy's world-class zoo inspires care for nature and people, serving diverse communities through in-person visits and innovative programs.
Revenue
$42.2m
Assets
$210.6m
Employees
622
EIN
35-1074747
IRS type
501(c)(3)

Zoo Miami Foundation (ZSF)

The Zoological Society of Florida (ZSF) is the non-profit support organization for Zoo Miami. ZSF was founded in 1956 when the Zoo was located in Crandon Park at Key Biscayne.
Revenue
$8.1m
Assets
$30.9m
Employees
72
EIN
59-6192814
IRS type
501(c)(3)

Oregon Zoo Foundation

The Oregon Zoo Foundation is an independent nonprofit that encourages charitable giving in order to advance the zoo's mission of inspiring the community to create a better future for wildlife.
Revenue
$11.7m
Assets
$22.9m
Employees
20
EIN
93-0718337
IRS type
501(c)(3)

Shedd Aquarium

Shedd Aquarium is an indoor public aquarium in Chicago, Illinois in the United States. The aquarium contains 32,000 animals and was for some time the largest indoor aquarium in the world with 5,000,000 US gallons of water.
Revenue
$94.9m
Assets
$628.2m
Employees
545
EIN
36-2167918
IRS type
501(c)(3)

Dallas Zoo

Dallas Zoo is home to more than 2,000 animals, and is thriving with new exhibits such as the Giants of the Savanna, Wonders of the Wild, presented by the Kimberly-Clark Corporation.
Revenue
$32.4m
Assets
$6.0m
Employees
537
EIN
27-0777846
IRS type
501(c)(3)

Elmwood Park Zoo

To foster an appreciation for wildlife and the environment that will inspire active participation in conservation. The Zoo is owned and operated by the Norristown Zoological Society.
Revenue
$11.4m
Assets
$59.3m
Employees
186
EIN
23-1970067
IRS type
501(c)(3)

Minnesota Zoo Foundation

Minnesota Zoo Foundation raises funds for conservation programs, education, and exhibits at the Minnesota Zoo to save wildlife globally.
Revenue
$6.3m
Assets
$14.5m
Employees
23
EIN
51-0147653
IRS type
501(c)(3)

Staten Island Zoological Society

Staten Island Zoological Society educates children and adults about zoology, operates a zoological park, and maintains a zoological garden.
Revenue
$5.5m
Assets
$3.7m
Employees
54
EIN
13-5680691
IRS type
501(c)(3)

Georgia Aquarium

Georgia Aquarium's mission is to inspire and educate its millions of guests about conservation of the aquatic biodiversity throughout the world.
Revenue
$133.1m
Assets
$536.4m
Employees
779
EIN
58-2574918
IRS type
501(c)(3)

Zoo Atlanta

Zoo Atlanta is an Association of Zoos and Aquariums (AZA) accredited zoological park in Atlanta, Georgia. The zoo is one of four zoos in the U.S. currently housing giant pandas.
Revenue
$46.5m
Assets
$119.7m
Employees
437
EIN
58-1655184
IRS type
501(c)(3)
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Methodology: Cause IQ mines all tax-exempt organizations that file a Form 990, Form 990-EZ, or Form 990-PF with the IRS. We collect and aggregate this information from OCR'd paper taxreturns, XML e-file taxreturns, IRS-provided extract, the Business Master File, and Cause IQ secret sauce for data cleaning, categorization, classification, analytics, etc.
This category corresponds to the "D50: Zoo, Zoological Society" National Taxonomy of Exempt Entities (NTEE) code. Cause IQ determines NTEEs for organizations by its own internally-developed secret-sauce algorithms.
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