Galapagar has a rich history that dates back to the Roman period, with evidence of settlements in the area from that time. The town gained prominence during the medieval period due to its strategic location along the route to the Sierra de Guadarrama and El Escorial. During the 16th century, Galapagar became a popular destination for the Spanish nobility, who built country estates and hunting lodges in the area, further boosting its significance.
Culturally, Galapagar is deeply rooted in Spanish traditions, with numerous festivals and events that celebrate its historical and religious heritage. One of the most important celebrations is the annual Fiesta de Nuestra Señora de la Asunción, which takes place in August and features parades, music, food, and bullfights. The town also celebrates the Romería de San Bartolomé, a traditional pilgrimage that attracts locals and visitors alike.
Local customs in Galapagar reflect the blend of rural and historical influences. The town’s central square, Plaza de la Constitución, often serves as a hub for cultural activities and events. Historical landmarks, such as the 16th-century Church of Our Lady of the Assumption, stand as testaments to Galapagar’s rich past and offer a glimpse into the town’s architectural and cultural heritage.