States and LGA codes

States

A state is identified by its two-letter code from ISO 3166-2:NG. Pass it as the state parameter. Codes are not case-sensitive.

Code	State	Zone
AB	Abia	South East
AD	Adamawa	North East
AK	Akwa Ibom	South South
AN	Anambra	South East
BA	Bauchi	North East
BY	Bayelsa	South South
BE	Benue	North Central
BO	Borno	North East
CR	Cross River	South South
DE	Delta	South South
EB	Ebonyi	South East
ED	Edo	South South
EK	Ekiti	South West
EN	Enugu	South East
FC	FCT	North Central
GO	Gombe	North East
IM	Imo	South East
JI	Jigawa	North West
KD	Kaduna	North West
KN	Kano	North West
KT	Katsina	North West
KE	Kebbi	North West
KO	Kogi	North Central
KW	Kwara	North Central
LA	Lagos	South West
NA	Nasarawa	North Central
NI	Niger	North Central
OG	Ogun	South West
ON	Ondo	South West
OS	Osun	South West
OY	Oyo	South West
PL	Plateau	North Central
RI	Rivers	South South
SO	Sokoto	North West
TA	Taraba	North East
YO	Yobe	North East
ZA	Zamfara	North West

There are 36 states and the Federal Capital Territory, 37 in all.

LGAs

An LGA is identified by lga_code, for example NGA.20.33_1 for Rimin Gado in Kano. These are GADM’s identifiers.

Join data on lga_code, not on the LGA’s name. Six LGA names are used in more than one state, and spellings vary between sources.

There are 774 LGAs. Each has:

Field	Meaning
lga_code	Stable identifier
lga	Name
is_urban	Whether the LGA is classed as urban, from its population density
population	People living in the LGA, from WorldPop

Boundaries

State and LGA outlines come from GADM version 4.1, simplified for drawing on a map. In the boundary endpoints an LGA’s identifier is in properties.lgaCode, which matches lga_code in the risk endpoints.

GADM’s boundaries can differ from other sources, such as GRID3 or a ministry’s own map. If you combine AI4M data with another dataset, match on names carefully or join through GADM codes.

Zones

Each state belongs to one of six geopolitical zones: North Central, North East, North West, South East, South South and South West. The zone’s name is returned in the zone field of State risk.