Bucaramanga is the capital and largest city of the department of Santander, Colombia. Bucaramanga has the fifth-largest economy b…Bucaramanga is the capital and largest city of the department of Santander, Colombia. Bucaramanga has the fifth-largest economy by GDP in Colombia, has the lowest unemployment rate and is the ninth most populous city in the country, with a population of 613,400. Bucaramanga has over 160 parks scattered throughout the city and has been given the nickname "La Ciudad de Los Parques" and "La Ciudad Bonita de Colombia".