Nigeria is 40% larger than Alberta (Canada).
Area: 923,768 km2 World Factbook
Population: 177,155,754 (July 2014) World Factbook
Nigeria, officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. Wikipedia
Alberta is a province of Canada. With a population of 3,645,257 in 2011 and an estimated population of 4,082,571 as of January 1, 2014, it is Canada's fourth-most populous province and most populous of Canada's three prairie provinces. Wikipedia