Hockenheim is one of the six largest towns in the Rhein-Neckar-Kreis district ; since 1999 the number of inhabitants exceeded the 20,000 threshold , thus the town received the status of a regional central town ( `` Große Kreisstadt '' ) in 2001 .
Hockenheim is one of the six largest towns in the Rhein-Neckar-Kreis district . Since 1999 , the population has exceeded the 20,000 , and Hockenheim received the status of a regional central town ( `` Große Kreisstadt '' ) in 2001 .