Lambaré was founded by Carlos Murphy in 1766. After the independence of Paraguay, its creation was formalized by Law No. 791, of June 5, 1962. The decree of the formation of the new municipality was signed by the government of Alfredo Stroessner. The first president of the Municipal Council was Mariano Escauriza.
It is part of the ten districts that make up the conurbation of Greater Asunción. The growth of the capital, favored the development of the population of this city, today Lambaré is the sixth most populous city in Paraguay. According to the 2002 census conducted by the General Directorate of Statistics, Surveys and Censuses Lambaré city has approx. 140,000 inhabitants.