Largest by Size

Niger

Niger State is a state in Central Nigeria; the state capital is Minna and it is the largest state in the country.
It is bordered on to the south by the Niger River. It is also bordered by the states of Kebbi and Zamfara to the north, Kaduna to the north and northeast, Kogi to the southeast, and Kwara to the south. The Abuja Federal Capital Territory is on Niger state’s eastern border, and the Republic of Benin is its western border. Niger state is made up of 25 local government areas.

Nasarawa

Nasarawa is a state in north central Nigeria. The state was created in 1996, out of the western half of the then Plateau state. Its capital is Lafia.
It shares borders in the west by the Federal Capital Territory Abuja, in the north by Kaduna State, in the south by Benue and Kogi State, and in the east by Plateau and Taraba States. The state consists of 13 Local Government Areas.

Lagos

Lagos is a state in the southwestern geopolitical zone of Nigeria. Its capital is Ikeja. It is the smallest in the area of Nigeria’s 36 states. Lagos State is arguably the most economically important state of the country.
It is bordered on the west by the Republic of Benin, Ogun state in the east while the Atlantic Ocean lies on its southern borders. Lagos is divided into 20 local government areas.