The Asian Water Development Outlook charts progress in water security in Asia and the Pacific over the past 5 years. This 2016 edition of the report uses the latest available data to assess water security in five key dimensions: household access to piped potable water and improved sanitation, economic water security, providing better urban water services to build more livable cities, restoring healthy rivers and ecosystems, and resilience to water disasters. The region shows a positive trend in strengthening water security since the 2013 edition of the report, when 38 out of 49 countries were assessed as water-insecure. In 2016, that number dropped to 29 out of 48 countries. This study was supported by ADB’s Water Financing Partnership Facility.