The Svalbard archipelago is a centre of global research on climate change and also an example of a rapidly changing Arctic area with tourism replacing the traditional mining industry. We compared the different development paths of the Norwegian (Longyearbyen and Ny-Ålesund) and Russian settlements (Barentsburg and Pyramida) on Spitsbergen as part of the Svalbard archipelago using demographic and socio-economic data until 2022 when available, but not focusing on the impacts of COVID-19 and changing geopolitics after 2022. We analysed strategy documents produced by Norway and Russia and by organisations connected to Svalbard. The analysis continued by scrutinising the statistical data available to ascertain if this supported the strategic goals outlined in the documents. Data collection was by direct enquiry to national statistical bureaus, agencies and institutions in Norway and Russia. Secondary data were collected from media publications and social media accounts. Statistics Norway provided very detailed data on demographics and industrial structure, turnover, investments and comprehensive statistics on employees by industry on Norwegian settlements on Svalbard. The results revealed disparities in socio-economic development, striking differences in data availability and in transparency between the Norwegian and Russian settlements. The population in the Norwegian settlements continued to grow during the period 1990–2022 with an increasing number of foreign nationals, and the population in the Russian settlements decreased by 85% at the same time period. The Norwegian settlements exemplify a diversified economy with a growing private sector, and the Russian settlements continued to rely on the town-forming Russian state unitary coal mining enterprise, Trust Arktikugol. While Svalbard presented a prime example of open data and transparency in the environmental sciences, the socio-economic and demographic statistics were lagging behind. Several practical proposals are presented for improved data collection on the Svalbard settlements.