Algiers is the administrative, political and economic capital and largest city of Algeria as well as the capital of the Algiers Province. located in th…Algiers is the administrative, political and economic capital and largest city of Algeria as well as the capital of the Algiers Province. located in the north-central part of the country, extending along the shores of the Bay of Algiers in the heart of the Maghreb region. The city's population at the 2008 census was 2,988,145 and in 2020 was estimated to be around 4,500,000. It is classified among the biggest cities in North Africa, the Arab world and the Mediterranean Sea, making it a major center of culture, arts and trade.