Where Do Hermit Crabs Live? (Wild Habitat Guide)
Hermit crabs live all over the world, mostly along warm tropical coastlines, oceans, and beaches. Some live fully in the sea, while others live on land near the shore. The exact spot depends on the type of crab – marine crabs stay in the water, and land crabs live close to it. Here is a clear look at where hermit crabs live in the wild, both in the water and on land, and which parts of the world they call home.
The Two Main Types and Where They Live
There are over 800 species of hermit crabs, and they split into two big groups based on where they live.
Marine hermit crabs make up most species. They live fully underwater in the ocean, from shallow reefs to the deep sea floor.
Land hermit crabs are the kind kept as pets. They live on shorelines and breathe air, but stay near the sea because they still need salt water.
Bonus: How Long Can Hermit Crabs Live Without Food?
Where Marine Hermit Crabs Live:
Most hermit crabs are marine and spend their whole lives in the water. You will find them in:
- Coral reefs. Shallow, warm reefs are full of food and shells, making them a favorite home.
- Tide pools. Small rocky pools along the shore that fill with seawater hold many small crabs.
- Sandy and muddy sea floors. Many crabs scuttle along the bottom looking for food and empty shells.
- The deep sea. Some species live as deep as 300 meters (about 1,000 feet) below the surface.
Where Land Hermit Crabs Live:
Land hermit crabs live near the coast but spend their lives out of the water. Their favorite homes include:
Sandy beaches and dunes.
They burrow into damp sand near the shoreline to stay cool and moist.
Mangrove forests.
These wet, salty coastal forests offer shade, food, and humidity.
Coastal and inland forests.
Some wander surprisingly far inland into tropical woods, returning to the sea to breed.
Salt marshes and rocky shores.
Damp, sheltered spots near the water keep their gills moist.
Land hermit crabs are mostly nocturnal, coming out at night to forage where the air is cooler and damper. During the hot day, they hide under leaves, logs, and sand to avoid drying out.
Which Countries Do Hermit Crabs Live In?
Hermit crabs live in warm waters and coastlines around the world. Most are found in tropical and subtropical regions.
Common wild homes include the Caribbean, Australia, Africa, South America, Indonesia, and the southern Atlantic coast of the United States. The popular pet species, the Caribbean hermit crab, comes from the warm shores of the Caribbean and Florida.
Bonus: What Can Live with Hermit Crabs?
Marine vs Land Habitat at a Glance:
Here is a quick side-by-side look at the two:
| Feature | Marine Crabs | Land Crabs |
| Lives in | Ocean water | Shoreline land |
| Breathes | Underwater gills | Air (moist gills) |
| Found in | Reefs, sea floor | Beaches, forests |
| Kept as pets? | Rarely | Yes |
Do Hermit Crabs Live in Water or on Land?
Both – it depends on the type. Marine crabs live in the water and would dry out on land. Land crabs live on land and would drown if kept underwater.
This is why a pet land hermit crab needs a dry tank with shallow water dishes, not a full aquarium. It needs salt water to soak and drink, but it breathes air and cannot live submerged.
Conclusion
Hermit crabs live in warm coastlines and oceans around the world, from the Caribbean to Australia. Marine crabs stay in reefs and the sea floor, while land crabs roam beaches, dunes, and coastal forests.
If you keep a land hermit crab as a pet, the goal is to copy its wild home: warm, humid, sandy, and close to salt water. Match its natural habitat and your crab will feel right at home.
Frequently Asked Questions
Q1: Do hermit crabs live in freshwater?
A: Almost never. Only one known species lives in freshwater, found on the island of Vanuatu. Every other hermit crab needs salt water to live.
Q2: Where do pet hermit crabs come from?
A: Nearly all pet hermit crabs are caught in the wild, since they rarely breed in captivity. Most come from warm Caribbean and Atlantic coastlines.
Q3: Do hermit crabs live alone or in groups?
A: In groups, despite their name. Wild hermit crabs live in large colonies of dozens or even hundreds, traveling and foraging together.
Q4: Do hermit crabs live in trees?
A: Some do climb. Certain land species, sometimes called tree crabs, climb plants and trees in coastal forests to find food and escape the heat.
