In 1999, of Nigeria's 37 states, 22 were held by the PDP, 6 by the AD, 6 by the ANPP, 2 by the APP and 1 by the APP (ANPP from 2003).

Nigeria through time

Drag the slider, or press play, to watch the map redraw itself and see who held power. Switch between the governors and the State Houses of Assembly; colour shows the party, grey is military rule, and stripes mark a seat held by a party it wasn't elected to.

1999

36 states + FCT

Gen. Abacha · Six final states (including Zamfara) completed today's 36-state federation. source ↗

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Federalno record

19142026

Tap a state to see who governed it in 1999, and to clip the timeline to its lifespan.

Ruling party · 1999

37 states held

Who governed each unit · 1999

Boundaries: Nigeria's 1914–1996 reorganisations. Leaders & legislatures: worldstatesmen.org, Wikipedia, IPU Parline, Britannica and contemporaneous reporting, reconciled across eras (federal heads of state, the National Assembly by term, governors, and the State Houses of Assembly with the 2025–26 defections). Some early assembly seat splits are party-only. Flags via Wikimedia Commons. An E Don Kast / StayGIS project.