Montserrat is 39% larger than Orange, 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: 73 km2 calculated
The city of Orange is located in Orange County, California. It is approximately 3 miles north of the county seat, Santa Ana. Orange is unusual in that many of the homes in its Old Town District were built prior to 1920. Wikipedia