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The canton of Zürich (German: Kanton Zürich [ˈtsyːrɪç] ; Romansh: Chantun Turitg; French: Canton de Zurich; Italian: Canton Zurigo) is a Swiss canton in the northeastern part of the country. With a population of 1,553,423 (as of 31 December 2020), it is the most populous canton in the country. Zürich is the de facto capital of the canton, but is not specifically mentioned in the constitution. The official language is German. The local Swiss German dialect, called Züritüütsch, is commonly spoken.
The canton had the highest Human Development Index score (0.989) out of over 1,700 subnational regions in 2021, coming close to a perfect score of 1. It is also a global financial center and the fourth richest canton in Switzerland behind Basel-Stadt, Zug and Geneva by GDP per capita.