Entroncamento is a Portuguese municipality in district of Santarém in the Médio Tejo Subregion of the Centro Region. The population in 2011 was 20,206, in an area of 13.73 km². Situated in the Ribatejo, it benefits from its geo-strategic position along the Tagus Valley, with important accessibility to the motorways and railway-lines that historically proportioned its growth and expansion.