Petrohrad () is a municipality and village in Louny District in the Ústí nad Labem Region of the Czech Republic. It has about 600 inhabitants.
Petrohrad lies approximately south-west of Louny, south-west of Ústí nad Labem, and west of Prague.
Administrative division Petrohrad consists of three municipal parts (in brackets population according to the 2021 census): Petrohrad (482) Bílenec (56) Černčice (140)
Demographics
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