During the process of German mediatization from 1806 to 1809, Weikersheim was awarded to the Kingdom of Württemberg, whose government assigned the city to Oberamt Mergentheim [de].

In that time, Baden-Württemberg reorganized its administrative structure [de], and as a result Weikersheim was assigned to the newly created Main-Tauber district.

[3] The township (Stadt) of Weikersheim covers 80.92 square kilometers (31.24 sq mi) of the Main-Tauber district of Baden-Württemberg, a state of the Federal Republic of Germany.

The lowest elevation above sea level in the municipal area, 213 meters (699 ft) Normalnull (NN), is found on the Tauber, near Elpersheim [de].

The first seal associated with Weikersheim is dated to 1435 and contained the "W", but from 1593 onward, it was supported by two lions and positioned above images of the Sun, Moon, and the planet Mercury.