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Zoos and acquariums

There are 219zoos in the United States. Combined, these zoosemploy 32,066 people, earn more than $2 billion in revenue each year, and have assets of $6 billion.
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Job trends for Zoos

Employees per organizationNumber of organizations
0
13
1-10
3
11-25
8
26-100
25
101 to 1,000
60
1,000+
4
Key takeaways for employment stats:

Sizes of zoos

Revenues per organizationNumber of organizations
< $250k
20
$250k to $1M
20
$1M to $5M
24
$5M to $25M
36
$25M to $100M
22
$100M+
3
Key takeaways for revenue stats:

Directory of zoos

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1-20 of 219

Conservation Society of California

The Oakland Zoo has been serving the community since 1922 in locations all across Oakland, finally settling in Knowland Park.
Revenue
$23.7m
Assets
$96.1m
Employees
364
EIN
94-1687847
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. The special purpose for which the Society is created and organized is to aid in the improvement, maint...
Revenue
$51.4m
Assets
$178.0m
Employees
549
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
$22.1m
Assets
$47.7m
Employees
285
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
$59.8m
Assets
$212.1m
Employees
1,016
EIN
36-2167016
IRS type
501(c)(3)

San Diego Zoo Wildlife Alliance

San Diego Zoo global is committed to saving species worldwide by uniting our expertise in animal care and conservation science with our dedication to inspiring passion for nature. Saving species worldwide by uniting our expertise in animal care and conser...
Revenue
$246.9m
Assets
$827.2m
Employees
3,603
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
$45.9m
Assets
$44.8m
Employees
690
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
$28.7m
Assets
$119.3m
Employees
110
EIN
43-1727309
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
$48.3m
Assets
$474.6m
Employees
507
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
$27.1m
Assets
$6.5m
Employees
673
EIN
27-0777846
IRS type
501(c)(3)

Indianapolis Zoological

We protect nature and inspire people to care for our world. We believe in a world where nature and people thrive. We are one team. We care. We welcome everyone. We have integrity. We strive for excellence.
Revenue
$23.7m
Assets
$177.3m
Employees
655
EIN
35-1074747
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
$102.5m
Assets
$452.1m
Employees
926
EIN
58-2574918
IRS type
501(c)(3)

Bayorg

To protect, restore and inspire conservation of the san francisco bay and its watershed - from the sierra to the sea. To protect, restore and inspire conservation of the san francisco bay and its watershed - from the sierra to the sea.san francisco's larg...
Revenue
$10.1m
Assets
$7.3m
Employees
170
EIN
90-0401015
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
$20.6m
Assets
$17.5m
Employees
258
EIN
94-1429538
IRS type
501(c)(3)

Aquarium of the Pacific

Founded in June 1998, the Aquarium of the Pacific is a 501(c)3 non-profit organization. The Aquarium of the Pacific's mission is to instill a sense of wonder, respect, and stewardship for the Pacific Ocean, its inhabitants, and ecosystems.
Revenue
$43.2m
Assets
$101.6m
Employees
543
EIN
33-0532354
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
$20.8m
Assets
$88.3m
Employees
395
EIN
58-1655184
IRS type
501(c)(3)

Denver Zoological Foundation

Denver Zoological Foundation operates as a non-profit organization. They provide animal care, exceeding professional standards for animal welfare and management, veterinary care, behavioral enrichment, and nutrition and staff training.
Revenue
$52.7m
Assets
$29.5m
Employees
606
EIN
84-0502539
IRS type
501(c)(3)

San Antonio Zoological Society

To foster appreciation and concern for all living things. To foster appreciation and care for all living things. To care foster appreciation for all living things.
Revenue
$25.1m
Assets
$52.4m
Employees
968
EIN
74-1323695
IRS type
501(c)(3)

Detroit Zoological Society

The Detroit Zoological Society is a non-profit organization that operates the Detroit Zoo and Belle Isle Nature Zoo. The organization has over 56,000 member households and over 1,100 volunteers who contribute 100,000 hours each year.
Revenue
$31.1m
Assets
$51.3m
Employees
400
EIN
38-6027356
IRS type
501(c)(3)

National Aquarium

The National Aquarium is a nonprofit organization focused on changing the way humanity cares for the ocean.
Revenue
$50.2m
Assets
$104.7m
Employees
512
EIN
52-1121163
IRS type
501(c)(3)

Philadelphia Zoo

The region's leading family destination and one of the area's foremost conservation organizations, Philadelphia Zoo is home to nearly 1,300 animals, many rare and endangered.
Revenue
$26.5m
Assets
$118.6m
Employees
401
EIN
23-1352298
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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