Aqaba is the only coastal city in Jordan and the largest and most populous city on the Gulf of Aqaba. Situated in southernmost Jordan, Aqaba is …Aqaba is the only coastal city in Jordan and the largest and most populous city on the Gulf of Aqaba. Situated in southernmost Jordan, Aqaba is the administrative center of the Aqaba Governorate. The city had a population of 148,398 in 2015 and a land area of 375 square kilometres. Aqaba has significant trade and tourism. The Port of Aqaba also serves other countries in the region.