 As part of the administrative reforms in Bavaria, in the community edict (the 'Gemeindeedikt von 1818') of 1818, the present municipality, which was closely linked to Burglengenfeld as a seat of justice and later as county seat until the local reform.Today Schmidmühlen is the southernmost municipality of Amberg-Sulzbach.This brought a reorientation in the north, which had started 100 years ago with the construction of the railway line Amberg-Schmidmühlen (1910-1985, now part of the Five Rivers Cycle Route).