Nigeria has never voted a state into existence except once, in 1963. Every other line on the map was drawn by a decree — and 37 of the 37 current units were created by a military government.
Units in the federation after each exercise, with the government that ordered it.
Northern and Southern Protectorates joined into one Nigeria for accounting reasons: the North ran a deficit, the South a surplus.
The South split into Western and Eastern provinces — the three-bloc shape that would dominate the First Republic.
Regions became federating units with their own premiers, marketing boards and, briefly, foreign missions.
The only region created by referendum, carved from the West — and the only minority demand of the 1957 Willink Commission ever granted.
Announced three days before Biafra's declaration. Splitting the East into three units removed the Eastern Region's oil and its coastline at a stroke.
Irikefe panel. The Federal Capital Territory was carved from Niger, Plateau and Kwara to give the capital no ethnic owner.
Two states created outside any commission — the first sign that creation had become an instrument of regime management.
Nine states in a single announcement, plus the capital's move to Abuja. Bendel disappeared; Delta and Edo replaced it.
The last exercise. Every state since 1967 has been created by a military government; no civilian administration has ever created one.
How many of today's states date from each exercise.
Anambra, Bauchi, Benue, Borno, FCT, Imo, Niger, Ogun, Ondo, Oyo, Plateau, Sokoto — announced together, with no commission report published alongside them.
Akwa Ibom, Katsina — the exercise that showed creation had become a tool of regime management rather than of representation.
Today's states grouped by geopolitical zone and the exercise that produced them.
Carved from Imo State.
Carved from Gongola State.
Carved from Cross River State.
Carved from East Central State.
Carved from North Eastern State.
Carved from Rivers State.
Carved from Benue-Plateau State.
Carved from North Eastern State.
Carved from Eastern Region (as South Eastern State).
Carved from Bendel State.
Carved from Enugu and Abia States.
Carved from Bendel State.
Carved from Ondo State.
Carved from Anambra State.
Carved from Niger, Plateau and Kwara territory.
Carved from Bauchi State.
Carved from East Central State.
Carved from Kano State.
Carved from Northern Region (as North Central State).
Carved from Northern Region.
Carved from Kaduna State.
Carved from Sokoto State.
Carved from Kwara and Benue States.
Carved from Northern Region.
Carved from Federal Territory of Lagos and Western Region colony districts.
Carved from Plateau State.
Carved from North Western State.
Carved from Western State.
Carved from Western State.
Carved from Oyo State.
Carved from Western State.
Carved from Benue-Plateau State.
Carved from Eastern Region.
Carved from North Western State.
Carved from Gongola State.
Carved from Borno State.
Carved from Sokoto State.