Haiti is 272 times larger than Montserrat.
Area: 27,750 km2 World Factbook
Population: 9,996,731 (July 2014) World Factbook
Haiti, officially the Republic of Haiti, is a Caribbean country. It occupies the western, smaller portion of the island of Hispaniola, in the Greater Antillean archipelago, which it shares with the Dominican Republic. Ayiti was the indigenous Taíno name for the island. Wikipedia
Area: 102 km2 World Factbook
Population: 5,215 (July 2014) World Factbook
Montserrat is a British Overseas Territory located in the Caribbean. The island is located in the Leeward Islands, part of the chain of islands known as the Lesser Antilles, in the West Indies. Wikipedia