The Largest Saltwater Crocodile in the World

largest saltwater crocodile

Written by Brandi Allred

Updated: September 1, 2023

Share on:


Saltwater crocodiles (Crocodylus porosus) are the largest living reptiles on Earth. They’re even bigger than the fearsome Nile crocodile and dwarf alligators, gharials, and caimans. But, just how big is the largest saltwater crocodile in the world? Over the years, many contenders have been reported, but only a few of them have been accurately measured. This species may not grow to the same size as its ancient ancestors (some of which grew to over 30 feet!), but it can still grow to gargantuan proportions.

Watch A-Z-Animals on Youtube

Many people may mistakenly believe that alligators are larger than crocodiles, but this is not the case. Alligators generally grow to about 13-14 ft long, while crocodiles reach 17 ft and longer. Another distinguishing feature of these crocodilians is their snouts. Alligators have broad snouts while crocodiles have elongated, thin snouts. Both species can be quite threatening. However, crocodiles are more aggressive and are known to kill humans, while alligators rarely ever do.

As apex predators, the largest saltwater crocodiles in the world have little to fear. But even these fearsome, incredible creatures have fallen victim to poaching, capture, and habitat loss. That’s why, now more than ever, it’s important to understand the role crocodiles play in our ecosystems. Here, we’ll learn about a few of the largest saltwater crocodiles ever recorded. Why saltwater crocs and not saltwater alligators? Because the latter prefer fresh water to all that salinity.

Once you’ve discovered all you need to know about these massive reptiles, you’ll also be able to read about what you can do to ensure that these magnificent creatures are still around for the next generation.

Let’s get started!

The Scoop on Crocodiles

Freshwater crocodile hatching, poke their head out of the egg in hatchery room at crocodile farm.

Baby crocodiles have a lot to look out for, like birds, fish, and even other crocodiles.

©Arunee Rodloy/

Crocodiles have been around for over 60 million years; that’s a long time! They’re called saltwater crocodiles because they can survive in salty water. Because of this, they’re commonly known as ‘salties’ in Australia. Salties start life as eggs carefully guarded by their mother. When they hatch, they’re so small that they feast mainly on small fish, insects, and amphibians. As they grow, the baby crocodiles learn to consume bigger and bigger prey. The largest saltwater crocodile adults can eat prey as big as pigs, water buffalo, and kangaroos.

If you’ve never seen a crocodile, perhaps the best way to describe them is as the rulers of the river. They’re big, scaly, and impressive. All saltwater crocodiles are dull green on the sides and back and pale tan on the belly. They have long snouts filled with conical teeth. Interestingly, their teeth aren’t meant for shearing, like a lion’s. Instead, they’re used to clamp down on prey (crocodiles have one of the strongest bite forces on Earth) during ambush and consumption.

Where Do They Live?

Cassius, Captive Saltwater Crocodile

Saltwater crocodiles live in marshes and swamps and like to stay concealed when possible.

©Bob Stilwell/

You may be wondering, just where do the largest saltwater crocodiles on Earth live? They’re actually native to Indonesia, Southeast Asia, eastern India, and the northern coast of Australia. Saltwater crocodiles inhabit mangrove swamps, marshes, rivers, lakes, ponds, and even coastal ocean waters. Their favorite haunts include murky waters where they can remain concealed below the water, waiting for unsuspecting prey. Saltwater crocodiles can lie in wait like this for up to seven hours!

What are the Largest Crocodiles on Earth?

In captivity, some species of crocodiles can live up to 80 years or more due to better care than in the wild.

There are many folktales about monstrous crocs, but only a few verified giants. Saltwater crocodiles were hunted mercilessly in the decades before they became a protected species, so modern giants are rare. Here, we’ll take a look at three of the largest saltwater crocodiles ever reliably measured. Number one on our list was gargantuan!

How Long Do Crocodiles Live?

Crocodiles have been around for a long time and remain one of the most feared apex predators. They are strong and powerful, with their body structure designed to help them be successful hunters. Despite all this knowledge we have of crocodiles, they still remain somewhat mysterious to us.

Their lifespan can be determined by various factors such as disease or predation. Crocodiles in the wild can live for up to 70 years. In captivity, however, some species of crocodile can live up to 80 years or more due to better care than in the wild.

Crocodiles also tend not to reach sexual maturity until later in life; female Nile crocodiles may take up to 15 years before reaching reproductive age! It is clear that these reptiles are incredibly resilient creatures who have managed to survive hundreds of millions of years despite changes in climate and environment over time.

3. Crocodile in the Wild

Strongest animal bite – saltwater crocodile

In the wild, saltwater crocodiles often grow as big as 13 feet, but some individuals grow even bigger.

©Pius Rino Pungkiawan/

In 2017, a passerby spotted a deceased saltwater crocodile floating in a river in northern Queensland, Australia. Saltwater crocodiles are a protected species, meaning it is illegal to kill them. Unfortunately, though, when crocodile experts inspected the body, they found that the mystery croc had been shot to death with a large caliber rifle.

Only, this was no normal crocodile. When measured, the salty in question turned out to be one of the largest saltwater crocodiles in the world. The nameless behemoth measured just over 17 feet. Had he been allowed to live and continue growing, he just might have become the largest saltwater crocodile on Earth. Still, experts agree that this unfortunate crocodile was one of the largest wild salties seen in more than three decades.

2. Cassius

Cassius, Captive Saltwater Crocodile

Cassius is the world’s largest captive estuarine crocodile.

©Bob Stilwell/

The title of the largest living saltwater crocodile on Earth belongs to a croc named Cassius. Cassius currently lives in a private marine park called Marineland Melanesia, off the coast of Australia. But, Cassius didn’t always live behind barbed wire—he started his life out as a wild salty. In 1984, a man named George Craig captured Cassius and placed him in his new, tiny home for the enjoyment of paying customers.

Today, Cassius measures 18 feet long. He’s the largest saltwater crocodile on Earth—that’s alive. There’s still one more crocodile who makes even Cassius look small, let’s check him out!

1. Lolong


After his death, Lolong was taxidermied and put on display in a museum in the Philippines.

©Julan Shirwod Nueva / Creative Commons – Original / License

The largest saltwater crocodile ever reliably measured was Lolong, the crocodile from an unknown pond in the Philippines. Lolong lived in the wild until 2011 when he was summarily blamed for the deaths of several water buffaloes, and the disappearances of two people. In 2011, professional crocodile hunters captured Lolong and discovered that they had just caught the world’s largest saltwater crocodile.

Lolong measured 20 feet and 3 inches long and nearly 2,400 pounds. He was quickly transferred to Bunawan Ecopark in the Philippines, where spectators could purchase tickets to behold his massive bulk. 

Unfortunately for this legendary salty, this meant that the water in his enclosure was frequently drained so that tourists could see him. At the time, Lolong would have been at least 70 years old, meaning that he needed the water to keep his organs from crushing themselves due to his tremendous weight. This practice, coupled with poor conditions, led to Lolong’s death less than two years after his capture.

Where Exactly Was Lolong Put on Display?

The Lolong Crocodile Tourist Eco Park (which is now permanently closed) was located in the province of Agusan del Sur in the southern part of the Philippines. Specifically, it was situated in the town of Bunawan, which is approximately 170 kilometers northeast of Davao City. Davao City is a highly urbanized city in the southern part of the Philippines.

Conservation: The Largest Saltwater Crocodiles in the World

While the three crocodiles on our list are truly huge, there are still more reports of even bigger salties. These include a crocodile dubbed “Sweetheart” who reportedly measured over 20 feet long, as well as another saltie known as “Krys” who may even have exceeded 28 feet! Unfortunately for the largest saltwater crocodiles on earth, they’re not always treated with the compassion and respect they deserve. In order to preserve these magnificent creatures for the next generation, it’s important to learn about them. And, whenever possible, leave them in their wild homes to live as nature intended.

Summary of the Largest Saltwater Crocodiles

1Lolong20 ft 3 in
2Cassius18 ft
3Wild croc17 ft

Share this post on:
About the Author

Brandi is a professional writer by day and a fiction writer by night. Her nonfiction work focuses on animals, nature, and conservation. She holds degrees in English and Anthropology, and spends her free time writing horror, scifi, and fantasy stories.

Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.