IMAJINE’s survey explores citizens’ perceptions, attitudes, and policy preferences concerning spatial inequalities and the cohesion policies that can be adopted (at regional, national, and European level) to reduce such disparities; people’s support for territorial (regional) autonomy; public’s opinions about the relationship between migration flows and inequalities. The survey was conducted between 22 September and 15 October 2020 in eight European countries: France, Germany, Italy, the Netherlands, Poland, Romania, Spain, and the UK. The sample includes individuals aged 18 years and older, currently resident in the eight surveyed countries. In line with IMAJINE project’s research framework, the survey aimed at offering a view of the European opinions at regional levels. Accordingly, the sample size was defined at NUTS 2 (Italy, the Netherlands, Poland, Romania, and Spain) or NUTS 1 (France, Germany, and the UK) level, with about 170 respondents for each subnational unit, although the target could not be achieved in some smaller regions. The sample size was increased in Romania, due to the low number of NUTS 2 regions, to get a number of interviews at the national level comparable to the other countries.