Alcalá is placed 10 kilometres far from Seville, a distance that includes it in the metropolitan area of Seville and makes it the nearest zone of Los Alcores region to the capital city; Mairena del Alcor, El Viso del Alcor y Carmona also belong to this region. At the same time it borders the Campiña region, the vastest of the province, which cover a large part of the Guadalquivir Valley. Alcalá's geographic extension covers 284.6 hectares, an extensive district with an area higher than the province's average. The geographic boundaries of its district are: Seville at North, Dos Hermanas at West, Utrera and Los Molares at South and Mairena del Alcor, Carmona and Arahal at East.
The relief of the Alcalá's municipal district has few and not very high rises, being the two more significant features the River Guadaíra - that flows across the district from South to North- and Los Alcores (English: The Hills).
The river that gives surname to the town is born in Morón Mountains and flows into the River Guadalquivir. It is a river recently formed from a geological perspective, running through rural plots of land, watering cultivated zones. When it reaches Alcalá, it becomes urban and determines the appearance of the town space, drawing a valley between the hills where the present urban area is placed on.
Los Alcores is a high formation that constitutes a natural wall of more or less 30 kilometres long and seven at its widest point, precisely at Alcalá's district. Its highest peak in Alcalá is 90 metres above sea level. Los Alcores shape is that of a plateau over the valley. It is a structure that remained higher regarding the water level, when water filled the Guadalquivir Valley, as an islet. On their sides quaternary marine sediment remains can still be seen.
We highlight the presence of albero sand in the composition of the soil of the locality, the yellow earth that has given universal fame to Alcalá. Both its golden characteristic colour and its brightness have made of it a luxury paving of urban spaces and ephemeral celebrations. It is the case of many festivals and fairs of Spain.
Alcalá's district is rich in water and there is in its subsoil one important aquifer that reaches the outside through natural springs and small water beds.