World Bank World Development Indicators · annual

Basic drinking-water access

Name: Basic drinking-water access
Creator: World Bank World Development Indicators
License: https://datacatalog.worldbank.org/int/public-licenses#cc-by

The percentage of people using at least basic water services. This indicator encompasses both people using basic water services as well as those using safely managed water services. Basic drinking water services is defined as drinking water from an improved source, provided collection time is not more than 30 minutes for a round trip. Improved water sources include piped water, boreholes or tubewells, protected dug wells, protected springs, and packaged or delivered water.

Available series

National annual observations with source notes and missing values preserved.

BY Belarus2024

What the data measures

Methodology: The data sources for drinking water services are household surveys such as Demographic and Health Surveys (DHS) and Multiple Indicator Cluster Surveys (MICS), administrative data, census, and other datasets such as compilations by international or regional initiatives (e.g., IB-NET) or studies conducted by research institutions. Based on these national datasets, JMP estimates the proportion of the people accessing different levels of services by using linear regression. You can find the details of estimates including the rules on interpolation, extrapolation and extension in the JMP’s methodology report (https://washdata.org/reports/jmp-2017-methodology). Statistical concept(s): The JMP classifies the water service levels into five tiers, ranging from the most to the least favorable: safely managed, basic, limited, unimproved, and surface water (Reference: https://washdata.org/monitoring/drinking-water). This indicator encompasses both people using basic water services as well as those using safely managed water services.

Coverage & limitations

214 reporting countries and areas · annual observations (available years vary by series)

At least basic means an improved source with a collection round trip of at most 30 minutes. This differs from safely managed drinking water and does not by itself establish water safety.
Annual 2000–2025 selection. Source estimates and historical values may be revised; unavailable values remain missing.

Field dictionary

Field	Meaning
period	Annual observation year; separate from acquisition date
value	%; missing and suppressed values remain null
status	Present, missing or suppressed; a zero is a present value
revision_id	Stable identity for this sourced observation revision
source_note	Footnotes supplied by the publisher, including preliminary estimates
release_id	The exact immutable public snapshot

Dataset record

Publisher: World Bank World Development Indicators
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Frequency: annual
Source collection updated: Not supplied by publisher
Snapshot retrieved: October 4, 2026
License: CC BY 4.0 with World Bank additional terms
Permitted channels: Public display · CSV download
Release identity: release-b6738a17-0b53-4c6c-895d-b6bbb403fb87

Visit original dataset

Required attribution

WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply, Sanitation and Hygiene, World Health Organization (WHO), uri: washdata.org, publisher: WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply, Sanitation and Hygiene (washdata.org), date accessed: 2025-09-30, date published: 2025-08-25; UN Children's Fund (UNICEF), uri: washdata.org, note: WHO/UNICEF Joint Monitoring Programme (JMP) for Water Supply, Sanitation and Hygiene Distributed by World Bank WDI, SH.H2O.BASW.ZS; accessed 2026-10-04T18:27:37.899Z. Adaptation by World Signals Monitor; no publisher endorsement is implied.

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