Sister cities of Płock

Płock [pwɔt͡sk] (Yiddish: Plotzk) is a city on the Vistula river, in central Poland. According to the data provided by GUS on 30 June 2009 there were 126,675 inhabitants. It is located in the Masovian Voivodeship (since 1999), having previously been the capital of the Płock Voivodeship (1975–1998).

It now is a capital of a powiat (county) at the extreme west of the Mazovian Voivodeship. From 1079 - 1138 Płock was capital of Poland, and is considered Poland's historical capital. Its cathedral has the sarcophagi of the Polish monarchy. It is the cultural, academic, scientific, administrative and transportation center of the west and north Masovian region.

Responding to the extension of rights by Polish kings, Jewish settlers came to the city by the 14th century. They built a community, and comprised a large proportion of the population through the nineteenth century, sometimes of more than 40%. They contributed trades and crafts, and helped industrialization. In 1939, they made up 26% of the city's population. The Nazis established a Jewish ghetto in Płock in 1940. They transported many to other areas and killed most. After war's end, 300 Jewish residents of more than 10,000 in the region had survived. None live there today.