Uppsala is the capital of Uppsala County and the fourth-largest city in Sweden, after Stockholm, Gothenburg, and Malmö. It had 168,096 inhabitants in 2017.

Located 71 km (44 mi) north of the capital Stockholm it is also the seat of Uppsala Municipality. Since 1164, Uppsala has been the ecclesiastical centre of Sweden, being the seat of the Archbishop of the Church of Sweden.

Uppsala is home to Scandinavia's largest cathedral – Uppsala Cathedral. Founded in 1477, Uppsala University is the oldest centre of higher education in Scandinavia. Among many achievements, the Celsius scale for temperature was invented there.

Uppsala was originally located a few kilometres north of its current location at a place now known as Gamla Uppsala (Old Uppsala). Today's Uppsala was then called Östra Aros (Eastern Aros, to differentiate it from Western Aros).

(Old) Uppsala was, according to medieval writer Adam of Bremen, the main pagan centre of Sweden, and the Temple at Uppsala contained magnificent idols of the Norse gods.

The city is the site of the oldest university in Scandinavia, founded in 1477, and is where Carl Linnaeus, one of the renowned scholars of Uppsala University, lived for many years; both his house and garden can still be visited. Uppsala is also the site of the 16th-century Uppsala Castle.

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