Global Access to Basic Drinking Water Services (2000-2022)
Annual percentage of population with access to at least basic drinking water services across 186 countries (2000-2022).
Dataset Metrics
Data Format
Dataset Schema (2 features)
| Name | Type | Nullable | Description |
|---|---|---|---|
| Time Period | integer | No | The year of observation, ranging from 2000 to 2022. |
| Country | float | Yes | Percentage of the population in ACountry with access to at least basic drinking water services. |
License & Compliance
About This Dataset
This longitudinal dataset tracks the Sustainable Development Goal (SDG) indicator 6.1.1: the proportion of the population using at least basic drinking water services. Data is presented as a percentage (0-100%) for 186 countries and territories, covering a 23-year period. 'Basic' services are defined as drinking water from an improved source, provided collection time is not more than 30 minutes for a round trip including queuing.
Data Quality
High consistency across the time series. The dataset is derived from harmonized household surveys and census data. Most columns are fully populated; some countries show 100% access, reflecting saturated coverage in developed economies.
Use Cases
Monitoring international progress towards SDG 6, analyzing the correlation between economic growth and infrastructure development, identifying regions requiring urgent water-security interventions, and global health research.
Limitations
The dataset provides a national-level aggregate and does not reveal disparities between urban and rural populations or specific sub-national regions. It also does not measure the 'safety' (contamination levels) of the water, only the 'access' and 'service level'.
Methodology
The data is estimated by the WHO/UNICEF Joint Monitoring Programme using a linear regression model based on available data points from national censuses, household surveys (like MICS and DHS), and administrative records.
Geographic Coverage
Source Information
Governance & Review
Usage & Restrictions
License: CC-BY 3.0 — This dataset is licensed for use by the purchasing entity. Refer to the specific license terms for permitted use.
Access Control: Download links are time-limited and single-use. All access is logged for audit purposes.