Nigerian States Codexery — Data & Quality

We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.

Last full accuracy audit: 2026-08-31 · 7 entries checked · 4 flagged · 5 issues confirmed · 4 corrected · 1 still open

Recent findings (audit lane, verbatim)

Abia State — The claim that Abia ranks eighth by Human Development Index since 2019 is not supported by widely-known canon; the HDI rankings for Nigerian states are not officially published annually with a consistent eighth-place ranking for Abia since 2019.

Abia State — The statement that Abia's population composition is '100% Igbo' is factually inaccurate; while the majority is Igbo, there are small minority groups and official census data does not list the state as 100% Igbo.

Adamawa State — The entry states that Modibo Adama received a green flag in 1806, but he actually received it in 1809.

Akwa Ibom State — The state has an estimated population of over 8.5 million, but the 2006 census figure is about 3.9 million and the 2022 projected estimate is around 5.5–6 million, not over 8.5 million.

Anambra State — The entry states 'bordered by Delta, Imo, Enugu, Kogi, and Abia.' Anambra does not border Abia; the correct list of bordering states is Delta, Imo, Enugu, and Kogi.

Open data

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Corrections

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