Petrohrad
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Petrohrad (German: Petersburg) 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 36 kilometres (22 mi) south-west of Louny, 73 km (45 mi) south-west of Ústí nad Labem, and 71 km (44 mi) 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
| Year | Pop. | ±% |
|---|---|---|
| 1869 | 1,092 | — |
| 1880 | 1,241 | +13.6% |
| 1890 | 1,194 | −3.8% |
| 1900 | 1,232 | +3.2% |
| 1910 | 1,281 | +4.0% |
| 1921 | 1,458 | +13.8% |
| 1930 | 1,590 | +9.1% |
| 1950 | 929 | −41.6% |
| 1961 | 1,055 | +13.6% |
| 1970 | 1,029 | −2.5% |
| 1980 | 853 | −17.1% |
| 1991 | 729 | −14.5% |
| 2001 | 690 | −5.3% |
| 2011 | 749 | +8.6% |
| 2021 | 678 | −9.5% |
| Source: Censuses |