The objective is to Know the demand for Emergency Contraception (EC). It is a transversal descriptive study during the period between August 2007 and January 2011 in the emergency department of Health Primary Care of Medina de Pomar.Results for EC 98 women, with a mean age of 34 (range: 15-53 years), 18,3 % were minors. 87,7 % attended during the day and 12,2% at night. The days of the week were the most requested weekends: 63,3 %. Respect to address, women living in Medina de Pomar were 35,7 % versus 64,3 % that from other localities.Conclusions: Most of the women who sought EC were young, frequented the emergency department during weekends and especially during daytime. More than half lived in other locations.