“Is every child counted”, a recent status report by UNICEF, shows that sufficient data are available for less than half of child-related SDG indicators. Many indicators, such as those on poverty and violence, are not comparable across countries, and are either too limited or of poor quality, leaving governments without the information they need to accurately address challenges facing millions of children, or to track progress towards achieving the Goals. Data are also very limited on the situation of the most disadvantaged populations within each country. Better disaggregated data on these populations is necessary. The report also identifies priorities for enhancing the collection, analysis and use of data for children.