New Brunswick (Canada) is 3.5 times larger than El Salvador.
Area: 21,041 km2 World Factbook
Population: 6,125,512 (July 2014) World Factbook
El Salvador, officially the Republic of El Salvador, is the smallest and the most densely populated country in Central America. The country's capital city and largest city is San Salvador. Important cultural and commercial centers for Central America on the whole include Santa Ana and San Miguel. Wikipedia
New Brunswick is one of Canada's three Maritime provinces and is the only province in the Canadian federation that is constitutionally bilingual. It was created as a result of the partitioning of the British Colony of Nova Scotia in 1784. Wikipedia