OpenNG

Postal Codes

Nigerian postal code assignments by state, LGA, and area

Overview

GET /v1/postal-codes provides postal code records with state-first lookup support, then LGA, postal code, and area filtering.

Data source policy

  • Primary source: NIPOST postcode finder
  • Cross-check sources: community postal code directories
  • Fallback rows are preserved with confidence metadata when primary source coverage is incomplete

Filters

See GET /v1/postal-codes/meta for the full set. Typical filters are state, lga, postal_code, area, is_verified, and confidence.

Examples

curl -sS "https://api.openng.dev/v1/postal-codes?state=lagos&limit=20"
curl -sS "https://api.openng.dev/v1/postal-codes?state=lagos&lga=ikeja&limit=20"
curl -sS "https://api.openng.dev/v1/postal-codes?postal_code=100271"

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