On World Population Day 2019, here are 10 least populated countries of the world

TUVALU (11,359): Consisting of three reef islands and six true atolls, Tuvalu is a Polynesian island nation located between Hawaii and Australia in the Pacific Ocean. The island has the world's smallest economy in terms of GDP, due to it's little population and lack of natural resources. (Photo | AFP)

NAURU (11,359): The Pacific island nation was ruled by Germany, Australia and New Zealand, UK, and Japan until gaining independence in 1966. Measuring just eight square miles, it is the world’s smallest island nation. The country has no railway and is one among the 16 countries in the world without an armed force. (Photo | Twitter/ Republic of Nauru)

PALAU (21,431): Probably the most interesting and important fact about the country is its matriarchal social order. Unlike in most parts of the world, matrilineal practices prevail in inheritance, marriage, funeral, and all other aspects of life. Another country without a military of its own, the only prison in the archipelago is a tourist destination. (Photo | AFP)

MONACO (30,645): France holds the responsibility for guarding the people of this tiny country, which is also the most densely populated country in the world. It is also the only country in the world with Human Development Index above 1. (Photo | AFP)

SAN MARINO (33,537): San Marino is surrounded on all sides by Italy, and claims to be the world's oldest republic. There is just 292 km of paved roads in the whole country and is the only nation in the world with more vehicles than people. (Photo | Twitter/ Visit San Marino)

LIECHTENSTEIN (38,244): One of the safest places to live on the whole planet, residents of Liechtenstein never bother to lock their front doors when they go out. On Liechtenstein’s national holiday, the head of state invite all the residents to have a feast at the princely ancestral residence. (Photo | AFP)

SAINT KITTS & NEVIS (52,715): Located in the Caribbean Sea, it is the smallest sovereign state in the Americas. People on St Kitts are called Kittitians and on Nevis they are called Nevisians. Discovered by Christopher Columbus himself, the two islands are the oldest colonised territories in the Caribbean. (Photo | AFP)

DOMINICA (73,897): 47 km in length 26 km in breadth, Dominica has a number of active volcanoes with rare eruptions. According to Britannica, it is the only island with a relatively large and distinctive group of Carib Indians, descendants of the people who inhabited the island before European colonisation. (Photo | AFP)

MARSHALL ISLANDS (74,539): The Marshall Islands are scattered over a vast area of ocean about 1.9 million square kilometers, which is equivalent to the size of Mexico. The country has a coastline that is 370 kilometers in length and is under the constant threat of sea level rise. (Photo | AFP)