La_Plaine_Saint-Denis

Seine-Saint-Denis (French pronunciation: [sɛn sɛ̃ d(ə)ni]) is a department of France located in the Grand Paris metropolis in the Île-de-France region. In French, it is often referred to colloquially as quatre-vingt treize or neuf trois ("ninety-three" or "nine three"), after its official administrative number, 93. Its prefecture is Bobigny.
In 2019, it had a population of 1,644,903 across 40 communes. In French, the learned but rarely used demonym for the inhabitants of Seine-Saint-Denis is Séquano-Dionysiens; more common is Dionysiens.