American Alligator

American Alligator

Alligator mississippiensis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
70–80% · Very likely
overall probability at Everglades National Park
3,348 Verified records at Everglades National Park
February Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The American alligator (Alligator mississippiensis), sometimes referred to as a common alligator or just gator, is a large crocodilian reptile native to the Southeastern United States. It is one of the two extant species in the genus Alligator, and is larger than the only other living alligator species, the Chinese alligator. Adult male American alligators measure 3.4 to 4.8 m (11.2 to 15.7 ft) in length, and can weigh up to 450 kg (1,000 lb), with unverified sizes of up to 5.84 m (19.2 ft) and weights of 1,000 kg (2,200 lb) making it the heaviest member of the family Alligatoridae, and the second longest one, after the black caiman. Females are smaller, measuring 2.6 to 3.35 m (8.5 to 11.0 ft) in length. The American alligator inhabits subtropical and tropical freshwater wetlands, such as marshes and cypress swamps, from southern Oklahoma and Texas to North Carolina. It is distinguished from the sympatric American crocodile by its broader U-shaped snout, with overlapping jaws and darker coloration, and is less tolerant of saltwater but more tolerant of cooler climates than the American crocodile, which is found only in tropical and warm subtropical climates. Wikipedia →

70–80% of wildlife watchers report a American Alligator sighting in Everglades National Park, based on 3,348 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

70–80
Jan
70–80
Feb
70–80
Mar
70–80
Apr
60–70
May
60–70
Jun
60–70
Jul
50–60
Aug
50–60
Sep
60–70
Oct
70–80
Nov
70–80
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Big Cypress National Preserve 🇺🇸 United States
90–100%
2 Everglades National Park 🇺🇸 United States
70–80%
3 Congaree National Park 🇺🇸 United States
40–50%

Quick answers

What are the chances of seeing a American Alligator in Everglades National Park?

About 72% of wildlife watchers report a American Alligator sighting in Everglades National Park, based on 3,348 days of visitor records from GBIF citizen-science data.

When is the best time to see American Alligator in Everglades National Park?

February has the highest sighting rate for American Alligator in Everglades National Park in our monthly data.

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