After the Second World War, the district gained greater importance as an industrial location.

[4] After the war, American soldiers were stationed on the barracks in the district; they were withdrawn after German reunification.

The coat of arms colors black and gold were adopted by the Knielingen local council in 1895 at the suggestion of the general state archives.

The Südtangente, a large bypass road, runs through Knielingen and ends at the Rhine bridge.

[5] When the American armed forces withdrew from the barracks on Sudetenstraße after the end of the Cold War, a 30-hectare area in the north of Knielingen became available, which has been gradually being built on since around 2009.

A commercial area is also being created, including a local supply center with a large supermarket, which opened in 2009.