The Deißlinger Hagenstall
|o Total||32.16 km2 (12.42 sq mi)|
|Elevation||611 m (2,005 ft)|
|o Density||190/km2 (490/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
In 1802-03, Deißlingen, a possession of the Free Imperial City of Rottweil, and Lauffen ob Rottweil, a property of Rottenmünster Abbey, were mediatized to the Electorate, later Kingdom, of Württemberg. Deißlingen was assigned to a newly organized Oberamt at Rottweil, and Lauffen to Oberamt Spaichingen. Lauffen joined Deißlingen in Rottweil's jurisdiction on 27 October 1810. The district was reorganized on 1 October 1938 as Landkreis Rottweil, to which the two towns were still assigned. On 1 January 1974, Lauffen was incorporated into Deißlingen and a new municipality formed.
The municipality (Gemeinde) of Deißlingen covers 32.15 square kilometers (12.41 sq mi) of the Rottweil district of Baden-Württemberg, which assigns Deißlingen to the metropolitan area of Villingen-Schwenningen, Tuttlingen, and Rottweil. Deißlingen is physically located in a transitional landscape between the muschelkalk-keuper plateaus of the Upper Gäu to the north, the Swabian Jura to the east, and the Baar to the south. Elevation above sea level in the municipal area ranges from a high of 753 meters (2,470 ft) Normalnull (NN) at the border with Tuttlingen district to a low of 574 meters (1,883 ft) NN on the Neckar as it forms the border with Rottweil.
Deißlingen has two boroughs (Ortsteile): Deißlingen and Lauffen.
The municipal coat of arms for Deißlingen shows a blue wall anchor upon a field of yellow, with a black bar at the top containing a yellow stag antler, a clear reference to Württemberg. The wall anchor is a motif associated with Lauffen ob Rottweil's as early as 1780. This coat of arms is a combination of those of the towns of Deißlingen and Lauffen, with a change made to the chief to comply with the rule of tincture. The Rottweil district office approved the official use of the coat of arms and issued a corresponding municipal flag on 10 December 1981.