How it works Try a lens The library Explore Get started FAQ Download on the App Store →

COUNTRIES

Saint Lucia: map, flag, capital and key facts

Saint Lucia is a country in North America, in Central America and the Caribbean, with about 180,000 people (2025) and an area of 620 square kilometres. Its capital is Castries, and it has no land borders.

By Team Geography Last reviewed

Flag of Saint Lucia
Flag of Saint Lucia
Map showing where the country sits among its neighbours
Saint Lucia in solid, land neighbours outlined, capital marked.

Key facts about Saint Lucia

CapitalCastries
ContinentNorth America
RegionCentral America and the Caribbean
Population180,149 2025, World Bank. 177th of 195.
Area620 km² (239 sq mi) World Bank, surface area. 178th largest of 195.
Population density291 people per km²
Land neighboursNone. It has no land borders with another country.
UN statusMember state
Capital coordinates14.00° N, 61.00° W Castries, Natural Earth.

No land borders

Saint Lucia shares no land border with another country. Its nearest neighbours are across the sea, as the map above shows.

From the Geography app

The app teaches each country through short hand written lenses: PLACE for physical geography, STORY for history and identity, NOW for the news, and THREAD for the ties between countries. Here is one of Saint Lucia's 5, in full.

PLACELens 1 of 5

Two volcanic spires and a drivable crater floor

Saint Lucia covers 617 square kilometers of ridge and rainforest, dropping steeply to a calm Caribbean coast on the west and a rougher Atlantic shore on the east. Its defining landmark is a pair of lava domes rising straight from the water near Soufrière: Gros Piton at 798 meters, Petit Piton at 743, hardened plugs left by eruptions roughly 71,000 and 109,000 years ago. Behind them the collapsed Qualibou crater vents steam at Sulphur Springs, where a road runs onto the crater floor.

More on Qualibou

UNESCO inscribed 2,909 hectares around the peaks as the Pitons Management Area in 2004, listing it under criteria for natural beauty and for geology at once. The property runs from the summits down through the Qualibou geothermal field to a fringing coral reef, so the protected ground includes the vents, the domes and the seabed beneath them.

4 more lenses on Saint Lucia in the app

  • STORY Fourteen changes of flag, one surviving creole
  • STORY The poet who would not borrow a landscape
  • NOW Arriving last to a crowded passport market
  • THREAD A Castries economist who rewired development thinking

Titles only. The app brings each lens back on a spaced repetition schedule set by how well you knew it: New, Hazy or Clear.

Compare Saint Lucia with another country

Opens the country comparison tool with population, area, income and more side by side, every figure dated.

Common questions

What is the capital of Saint Lucia?
The capital of Saint Lucia is Castries. Castries lies at about 14.0 degrees north and 61.0 degrees west. Saint Lucia is in North America, in the region often called Central America and the Caribbean. It is home to about 180,000 people.
What is the population of Saint Lucia?
About 180,000 people live in Saint Lucia, according to the World Bank figures for 2025. That makes it the 177th most populous of the 195 countries. With an area of 620 square kilometres, that is about 291 people per square kilometre.
What countries border Saint Lucia?
None. Saint Lucia has no land borders with any other country. It is surrounded by sea, so every neighbour of Saint Lucia is across the water. It lies in North America, in the region often called Central America and the Caribbean.
How big is Saint Lucia?
Saint Lucia covers 620 square kilometres, or about 239 square miles. That makes it the 178th largest of the 195 countries. The figure is total surface area, which includes inland water such as lakes and rivers. Its population of about 180,000 gives a density of 291 people per square kilometre.

Keep exploring