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Sub-national regions

Large disparities in water, sanitation and hygiene are found between sub-national regions

Inequalities in basic drinking water
Source: WHO/UNICEF JMP (2017)

The JMP inequalities database includes new estimates of coverage by subnational region derived from household surveys and censuses. The majority of national surveys stratify the population by at least one or two administrative levels. While the number and size of administrative units at each level varies across countries, the difference in coverage between them nevertheless provides a useful comparative measure of inequality.