Clean Water
The Stubborn Gap Few States Have Closed
Why it matters. Access to clean water is the most basic indicator of state delivery. Where citizen scores are low, every other development outcome suffers — health, education, economic productivity.
National best (Kogi)
3.33
2nd: Ekiti
Lowest: Taraba
1.80
3rd: Ogun
National median
2.52
Is better
States scored
31
States unscored
Leading States
Trailing States
The story in the numbers
Citizen satisfaction with water access has barely moved since 2018. The states leading the index have invested in decentralised infrastructure; the laggards remain dependent on seasonal and informal sources.
Inside the full report
Five parts. The whole federation.
The National Ranking
The complete ranking of every state on clean water, with citizen scores and sample sizes.
Three-Year Trends
How the picture moved across 2024–2026, and the zones improving fastest — and slipping.
The Regional Picture
Where the parameter is strongest and weakest by geopolitical zone, and what explains the pattern.
The Leaders' Playbook
The state initiatives behind the strongest results — verifiable, specific, and adaptable.
What to Do Next
What the evidence means for governments, partners and investors — anchored in global best practice.
A taste of the findings
"Kogi's score improved 0.4 points in two years — driven by a single LGA-level borehole programme that other states could replicate at modest cost."
The report names the programme, the budget, and the outcomes.
Where the work remains
The infrastructure gap is wide, but the delivery gap is wider.
States with similar budgets produce very different citizen scores — the report examines what the outliers are doing differently.
Read the full parameter report