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Zoos and acquariums

There are 385 zoos in the United States. Combined, these zoos employ 41,571 people, earn more than $4 billion in revenue each year, and have assets of $12 billion.
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Job trends for Zoos

Employees per organizationNumber of organizations
0
 
76
1-10
 
28
11-25
 
14
26-100
 
47
101 to 1,000
 
85
1,000+
 
3
Key takeaways for employment stats:

Sizes of zoos

Revenues per organizationNumber of organizations
< $250k
 
67
$250k to $1M
 
54
$1M to $5M
 
55
$5M to $25M
 
60
$25M to $100M
 
43
$100M+
 
5
Key takeaways for revenue stats:

Directory of zoos

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1-20 of 385

Conservation Society of California

Conservation Society of California enhances animal connections, protects endangered species, and fosters community collaboration for wildlife conservation and habitat preservation.
Revenue
$31.5m
Assets
$94.6m
Employees
467
EIN
94-1687847
IRS type
501(c)(3)

Association of Zoos and Aquariums

Association of Zoos and Aquariums advances wildlife conservation and education through accredited facilities, managing animal programs, and supporting species preservation initiatives.
Revenue
$20.9m
Assets
$35.2m
Employees
50
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
$56.4m
Assets
$264.9m
Employees
541
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
$29.1m
Assets
$58.9m
Employees
400
EIN
04-3129124
IRS type
501(c)(3)

Brookfield Zoological Chicago

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
$108.0m
Assets
$317.2m
Employees
791
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
$1.2m
Assets
$5.8m
Employees
11
EIN
52-0853312
IRS type
501(c)(3)

San Diego Zoo Wildlife Alliance

San Diego Zoo Wildlife Alliance unites wildlife care, science, and education to drive global conservation efforts and inspire passion for nature.
Revenue
$437.6m
Assets
$1.0b
Employees
4,211
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
$83.7m
Assets
$102.4m
Employees
645
EIN
91-6070005
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
$34.1m
Assets
$5.7m
Employees
533
EIN
27-0777846
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
$10.7m
Assets
$26.6m
Employees
24
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
$102.0m
Assets
$780.1m
Employees
659
EIN
36-2167918
IRS type
501(c)(3)

Indianapolis Zoological

Indianapolis Zoological inspires conservation through education, engages the community, and serves as a vital resource for wildlife preservation and sustainability.
Revenue
$57.7m
Assets
$245.4m
Employees
745
EIN
35-1074747
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
$58.5m
Assets
$303.7m
Employees
79
EIN
43-1727309
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
$7.9m
Assets
$36.4m
Employees
78
EIN
59-6192814
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
$13.7m
Assets
$26.3m
Employees
155
EIN
94-2861667
IRS type
501(c)(3)

Elmwood Park Zoo

Elmwood Park Zoo showcases over 100 species, promotes wildlife conservation education, and hosts engaging community events to inspire appreciation for nature.
Revenue
$16.1m
Assets
$71.4m
Employees
210
EIN
23-1970067
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
$4.0m
Employees
55
EIN
13-5680691
IRS type
501(c)(3)

Seattle Aquarium

Seattle Aquarium is a zoos or acquarium in Seattle, WA whose mission is: Seattle Aquarium inspires conservation of our marine environment and is run by Robert Davidson.
Revenue
$54.1m
Assets
$211.4m
Employees
263
EIN
91-1189249
IRS type
501(c)(3)

Palm Beach Zoo and Conservation Society

A fully accredited public zoo with over 500 endangered animals, inspiring conservation initiatives through grant support and education.
Revenue
$22.3m
Assets
$55.9m
Employees
130
EIN
59-1259270
IRS type
501(c)(3)

San Francisco Zoo and Gardens

Nestled against the Pacific Ocean, the San Francisco Zoo & Gardens is an urban oasis. It is home to over 1,000 exotic, endangered and rescued animals representing more than 250 species and lovely peaceful gardens full of native and foreign plants.
Revenue
$25.5m
Assets
$24.5m
Employees
242
EIN
94-1429538
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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