Demographics
The Valencian population traditionally concentrated in localities with fertile cultivation and growing lowlands by the most important rivers (Júcar, Turia, Segura, Vinalopó), also in harbor cities important to the agricultural trade.
The most important population centers used to be, during the Roman times, Sagunt or Dénia; later on in history, Valencia, Alicante, Xàtiva, Orihuela, Elx, Gandia, or Vila-real and, more recently recently, Alzira and Castellón de la Plana.
The population density which is higher in the central and southern regions and minor in the northern and inner ones, is derived from the traditional distribution of people which originated in the orographic characteristics of the Valencian territory and the possibility to obtain irrigated land agriculture. Demographics were also affected by (being perhaps the exception to the mentioned distribution) the great industrial activity and the commerce of agriculturally derived products during the 20th century of noncoastal cities like Alcoi, Elda, Ontinyent, Petrer, Villena, and La Vall d'Uixó.
In the last years, concentration in the great capitals and its metropolitan areas has augmented considerably (e.g. Torrent, Mislata, Paterna, Burjassot, Sant Vicent del Raspeig, etc.) especially in all the coastal cities and towns. Thus, traditionally small populations such as Benidorm or Torrevieja have undergone a considerable population increase (still more remarkable during summertime) due to the seasonal migration of tourists.
Read more about this topic: Valencian People