The villages of Egenhausen, Kapf, and Ölmühle were sold to theDuchy of Württemberg by theMargraviate of Baden in 1603. The three were governed fromAltensteig until 1811, when they were assigned toOberamt Nagold [de]. The Oberamt was dissolved in 1938 and Egenhausen, Kapf, and Ölmühle were subsequently assigned to the newLandkreis Calw. Egenhausen began a period ofurban growth afterWorld War II and had developed two new neighborhoods at its northern and western extremities by the mid-1960s.[3]
Egenhausen has one borough (Ortsteil), Egenhausen, and two villages: Kapf and Ölmühle. There is also anabandoned village, Sindelsteta, in the municipal area. Egenhausen is a member of the AltensteigMunicipal Association with the city ofAltensteig and the municipality ofSimmersfeld.[3]
Egenhausen'scoat of arms portrays athistle, inyellow awhite flower and six yellow leaves, rooted to afield ofred. The thistle is a reference to the flora of the Heckengäu. This coat of arms was awarded to Egenhausen by theFederal Ministry of the Interior alongside a municipal flag on 10 April 1969.[3]