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Largest zoos & aquariums in the United States

Biggest zoos & aquariums in the United States, ranked by revenue

The 50 largest zoos & aquariums in the United States by revenue range from $438 million down to $15 million.

The largest are San Diego Zoo, Bronx Zoo (Wildlife Conservation Society), and Georgia Aquarium.

Organizations
268
Total revenue
$3.2B
Total assets
$9.4B

Largest zoos & aquariums in the United States

Ranked by revenue.

San Diego Zoo
Bronx Zoo (Wildlife Conservation Society)
Georgia Aquarium
Brookfield Zoo (Chicago Zoological Society)
Shedd Aquarium
Columbus Zoo and Aquarium
Woodland Park Zoo
Omaha's Henry Doorly Zoo and Aquarium
National Aquarium
Cincinnati Zoo & Botanical Garden
Detroit Zoo
San Antonio Zoo
Aquarium of the Pacific
Indianapolis Zoo
New England Aquarium
Fort Worth Zoological Association Inc
Lincoln Park Zoological Society
The Toledo Zoological Society
Arizona Center For Nature Conservation
Lowry Park Zoological Society Of Tampa Inc
Zoological Society Of Philadelphia
Cheyenne Mountain Zoological Society
The Florida Aquarium Inc
Jacksonville Zoological Society Inc
Nashville Zoo Inc
Tennessee Aquarium
Atlanta Fulton County Zoo Inc
Sea Research Foundation Inc
Conservation Society Of California
East Coast Zoological Society Of Florida Inc
Memphis Zoological Society
Zoological Society Of Pittsburgh
Fresnos Chaffee Zoo Corporation
Commonwealth Zoological Corporation D/B/A Zoo New England
The Maryland Zoological Society Inc
Akron Zoological Park
Utah Zoological Society
San Francisco Zoological Society
Sedgwick County Zoological Society Inc
Clearwater Marine Aquarium Inc
The Zoological Society Of The Palm Beaches Inc
Santa Barbara Zoological Foundation
South Carolina Aquarium
Gulf Of Maine Research Institute
Texas State Aquarium Association
Oregon Coast Aquarium Inc
Knoxville Zoological Gardens Inc
Norristown Zoological Society
Cleveland Zoological Society
North Carolina Zoological Society Inc

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Public data from IRS Form 990 e-file & Business Master File. A 990 shows how an organization is run and funded — not its real-world outcomes. Figures are presented without evaluation; we do not rate, score, or rank organizations. · philanthropy.org