Montserrat is 3.7 times larger than Berkeley, California.
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
Area: 27 km2 calculated
Berkeley is a city on the east shore of San Francisco Bay in northern Alameda County, California, that is named after the eighteenth-century bishop and philosopher George Berkeley. Wikipedia