Its administrative and economic center of the region is Postojna, while other minor centers include Logatec, Cerknica, Pivka and Ilirska Bistrica.
The castle, of which only a single tower and some sections of wall survive intact, stands on slope known as Breg, near the source of the river Pivka, at an elevation of 618 m.
Slovenska Vas, Pivka, a village in the Municipality of Pivka (known as Nemška Vas until 1955)
Following the Austro-Hungarian Compromise of 1867, Rijeka gained greater importance as the sole Hungarian seaport, and in the second half of the 19th century a new artificial harbor was completed, as well as railway lines to Budapest via Zagreb and to Pivka in present-day Slovenia, where the railway joined the Austrian Southern Railway connecting Vienna and Trieste.
Pivka, a settlement in the Municipality of Pivka (formerly and locally known as Šempeter)
Slovenska Vas, Pivka, a settlement in the Municipality of Pivka, southwestern Slovenia