Bas-Rhin département : urbanisation level and population. This map shows the distribution of population and urbanisation levels in the Bas-Rhin département. About half of the population of the département lives in Greater Strasbourg (i.e. Strasbourg city and 27 surrounding municipalities). Other important cities are Haguenau (32,000 inhabitants) and Sélestat (17,000 inhabitants). Most of the département exhibits low urbanisation levels: 446 out of 526 municipalities have less than 2000 inhabitants.