Croc country (considered to be typical crocodile habitat) begins at the Boyne River south of Gladstone, and extends northward, up the east coast and across Far North Queensland. Crocodiles can sometimes also be found outside of croc country.
"The Mary River in Queensland is the furthest south they're generally found as residents," he said. "Whether there was one as far south as New South Wales, however, that really stretches credibility quite a lot, quite a few of these sightings have turned out to be something like a large monitor lizard.
In Queensland, Saltwater Crocodiles may be encountered in the sea or any coastal waterway north of Rockhampton. Individuals are occasionally seen as far south as the Mary River (Gympie).
The saltwater crocodile population in Australia is estimated at 100,000 to 200,000 adults. Its range extends from Broome, Western Australia through the entire Northern Territory coast all the way south to Rockhampton, Queensland.
Urimbirra Wildlife Park, SA
Being one of the only places in SA to see crocodiles, Urimbirra is well worth a visit. There are also many other attractions to see besides the crocodiles in the park.
The Murray River is way too far south for saltwater crocodiles to go near. The water is too cold for them – it's the same reason there are no crocodiles in Sydney and no crocodiles in Brisbane.
The Adelaide River is well known for its high concentration of saltwater crocodiles, along with other wildlife including white-bellied sea eagles, whistling kites, freshwater crocodiles, bull sharks and black flying-fox. Its lower reaches form part of the Adelaide and Mary River Floodplains Important Bird Area.
There are thought to be around 200,000 Saltwater Crocodiles in Australia, with the most found in the areas surrounding Darwin and the Mary River. Over the years, they have been hunted for their skins and have almost been brought to extinction on a number of occasions.
These frightening and fascinating animals live in the Northern part of Australia in a warm and tropical climate. You can find crocs along the north coast between Broome (Western Australia) and Rockhampton (QLD) and up to 200km inland.
Freshwater crocodiles are only found in Australia, inhabiting the freshwater rivers, lakes and 'billabongs' of northern Australia. Although they can tolerate saltwater, freshies are kept further upstream by the larger saltwater crocodiles.
"Crocodiles do not occur in Tasmania naturally and the only logical explanation I can see is that people could have had crocodiles in their private dwellings then released them into the wild as they got bigger," Mr Norton said.
Australia's Noosa Everglades is the only one in the world you can kayak as there are no crocodiles.
Crocodiles do not naturally occur in Victoria and there is no chance they would survive the conditions, Mr Moore said. "Releasing animals from captivity to the wild without authority is an offence and is inhumane," he said.
It may be possible to find a crocodile in northern New South Wales, but it's unlikely. Crocodiles do stray from where they're supposed to live sometimes, they've even been spotted on Australia's Great Barrier Reef.
Crocodiles are a problem in the northern, coastal parts of Australia, but there are no crocodiles in New South Wales. There are some parts of Australia where you really, really don't want to swim. Saltwater crocodiles kill an average of one to two people every year, and some of these salties are really big.
Crocodiles have been seen swimming in the open ocean as much as 30 kilometres from the nearest land. Always take note of posted warning signs. If you are fishing stay well back from the bank and do not clean fish within 50 metres of the river.
What is this? Crocodiles have been known to be as far south as the Mary River in Gympie. This is only about 167km from Brisbane and only 52km from the Great Sandy National Park. More astonishingly, this is a whopping 449km away from the northern points of Queensland where they are typically found.
Cassius, the 5.48m giant holds the Guinness World Record for being the largest croc currently in captivity. Housed on Green Island in Far North Queensland, he weighs more than one tonne and is believed to be more than 110 years old. The world record was previously held by Lolong in the Philippines.
Living with crocodiles. Contact between humans and crocodiles in the wild doesn't get much closer than on the Top End's Daly River, about 220 kilometres south of Darwin. This kind of protected landscape is the lure for many visitors to the NT.
"Around the world, there are about 23 species … of crocodylians," Groh told Live Science. "Of these, the salties in Australia are the largest that exist in the world — only the Nile crocodile in Africa and the American alligator come close."
The sprawling reserve has more than 2000 plant species and wildlife including saltwater crocodiles and turtles.
You'll find Crocodiles anywhere from Port Hedland in Western Australia all the way around the northern coast and back down just south of Brisbane. The further north you go the more common they are, but anywhere between Broome and Gladstone, they are relatively common.
No, The Murray River is too far south to have crocodiles and too far inland to have sharks. In fact there are no “nasties” in the river, so it's safe to swim in. We do recommend you wear a lifejacket while swimming, we can provide these for you on boarding.
Tarcoles River - highest populations of crocodiles in world - 25 crocs per square kilometer - Picture of Jose's Crocodile River Tour, Tarcoles - Tripadvisor.
Alligators in Kakadu
They can live in either fresh or saltwater and are found across much of the top coast of Australia.