Reliable, disaggregated and fit-for-purpose data is essential for the design, implementation and evaluation of any policy that aims to promote social inclusion of vulnerable groups, including persons with disabilities. In Indonesia, where the cities are often at the forefront of inclusive social policy innovation to fulfil the rights of persons with disabilities, the efforts of the government and the civil society are consistently hampered by the lack of relevant up-to-date and accurate data at the local and municipal levels.