The Pueblo people are a Native American people in the Southwestern United States. Their traditional economy is based on agriculture and trade. When first encountered by the Spanish in the 16th century, they were living in villages that the Spanish called pueblos, meaning "towns". Of the 21 Pueblos that exist today, Taos, Acoma, Zuni, and Hopi are the best-known. The main Pueblos are located primarily in New Mexico and Arizona.