Demographics of Cologne Demographics of Cologne Cologne () is Germany's fourth-largest city and the largest city in the Rhineland. As of 31 December 2011, there were officially 1,017,155 residents. The city is center of the Cologne/Bonn Region with around 3 million inhabitants (including the neighboring cities of Bonn, Hürth, Leverkusen, and Bergisch Gladbach). The walls of Colonia Agrippina covered an area of 96.8 hectares, but the population density within the walls remains uncertain. Since the construction of the Medieval wall in 1180, the area of the old imperial city of Cologne has not changed for more than 600 years and was only extended
History of the Jews in Cologne offices, and the Roman administration went into crisis and the emperor had to look for alternatives. It became necessary for the Cologne Council to use a decree of Emperor Constantine the Great of 321, which permitted Jews to be appointed to the "curia". This is the first evidence of the existence of a Jewish community in the town of Cologne. The emperor's decree was passed down in the "Codex Theodosianus" (439), which indicates the existence of a firmly established Jewish community in Cologne in 321 and 331. A partial translation of the "Codex" reads: "We allow all town councils to