The population of the Lake Constance region was more than 3.8 million at the end of 2010. This is an increase of almost seven percent compared to 2000.
Statistical offices in the region project the total population to increase another five percent by 2020. Thus, the region's projected population growth is larger than those of the respective national states.
The region's average population density (2010) is 291 persons per km². There are, however, significant differences within the region: