The political municipality comprises the market town itself and the following villages: Angerbach, Dirnaich, Engersdorf, Hölsbrunn, Kollbach, Malling, Obertrennbach, Panzing, Radlkofen, Reicheneibach und Seemannshausen.

of Leonberg made the Teutonic Knights the patrons over the local parish, thus founding this military order's monastic residence ("Kommende") in Gangkofen.

The market town Gangkofen was a separate lower administrative and judicial unit ("Pflegamt") prior to 1803 and was part of the tax district ("Rentamt [bar; de; es]") Landshut of the Prince-Electoriate Bavaria.

The residence of the Teutonic Knights ("Kommende"), which was equipped with the liberties of a gentry seat ("Hofmarksrecht") and exercised the judicial stewardship over its own properties, was dissolved by the Kingdom of Bavaria in 1806.

Immediately to the northwest of the Church lies the former monastery of the Teutonic Knights, a three winged structure, newly built in 1691 in the late baroque style.

Two local newspapers are circulated in Gangkofen: The "Rottaler Anzeiger" (regional edition of the Passauer Neue Presse, PNP) has its editorial office in Eggenfelden, 11 miles (18 km) to the east.