Deckenpfronn is a municipality in the district of Böblingen in Baden-Württemberg in Germany.North of Deckenpfronn on the Lerchenberg is the radio transmitter site of the Karlsruhe police, which includes an 81-metre-high transmission tower.Population 1900: 1.178 1950: 1.003 1987: 2.074 2005: 2.929 2010: 3.168 2015: 3.306