Which Moroccan city had 3,359,818 residents in the 2014 census?

Casablanca had 3,359,818 residents in Morocco’s 2014 census. It was Morocco’s largest city by population and the country’s principal Atlantic port and commercial center.

The 2014 Moroccan census was conducted from 1 to 20 September. Casablanca’s number is tied to an administrative count, so sources may differ when discussing the municipality, Casablanca Prefecture or the wider metropolitan area. The surrounding urban region contains many additional residents beyond the city’s census boundary.

Casablanca grew dramatically during the 20th century, especially under the French protectorate, when its port, rail connections and industrial base expanded. Its modern business districts stand alongside older quarters and the medina. The city’s name became globally familiar through the 1942 film Casablanca, although that movie was largely filmed in Hollywood studios.

Marrakesh, Tangier and Fez are also major Moroccan cities, but each had a substantially smaller 2014 census population. Casablanca’s total therefore identifies the city clearly in this question.