The authors delimited four zones of Brno hinterland using analysis of labour commuting to Brno in 1991 and 2001 and data on migration in 1991-2004. They arrived at the conclusion that the hinterland expands, particularly due to weakening of labour function of micro regional centres in the distance of 20-50 km from Brno. They argue that expansion of the hinterland is significantly caused by firms with foreign capital located in industrial zones and the Czech Technological Park. As regards migration, it is probable that the city of Brno will gain more population by means of migration in future; this prediction is also supported by the latest statistical data concerning current residential construction in the city. Nevertheless, the migration turnover between Brno and the municipalities of the first and second hinterland zone will remain quite high since the sub-urbanisation process is not finished.