Campinas is a city located in the Brazilian state of São Paulo, situated approximately eighty-four kilometers northwest of the capital city of São Paulo. It serves as the core municipality of the Grande Campinas metropolitan area, which encompasses twenty municipalities and functions as a major center for industry, services, and research within the country. The city holds significant administrative importance as the center of its own micro- and meso-regions, contributing substantially to the regional economy with a gross domestic product of seventy billion reais.

The city was founded on July 14, 1774, by Barreto Leme as an outpost for Portuguese settlers traveling toward Minas Gerais and Goiás. It became a municipality in 1797 under the name Vila de São Carlos before growing through sugarcane and later coffee farming during the nineteenth century. A devastating yellow fever epidemic in the 1800s killed over twenty-five percent of the inhabitants, leading to the phoenix symbol on its flag representing its rebirth. The construction of railways in 1867 and the Anhanguera Highway in 1938 were pivotal developments that integrated the city into the state's infrastructure.

The urban landscape features distinct districts such as Downtown, the oldest part and main shopping hub, and the affluent Cambuí neighborhood known for its restaurants and bars. Barão Geralbo hosts the State University of Campinas and numerous research centers, while Sousas and Joaquim Egídio offer historic charm and nature. The city retains ecological sites like the Mata de Santa Genebra forest and several urban groves, including Bosque dos Jequitibas, preserving remnants of the original subtropical vegetation amidst modern development.

Campinas attracts business travelers, international students, and researchers rather than conventional tourists, offering access to the scenic Mantiqueira mountain range. The city boasts a rich historical heritage from the coffee farming era, including an opera house, theaters, and early educational institutions like the Escola Normal de Campinas. It is home to notable figures such as composer Carlos Gomes and President Campos Salles, and its cultural landscape includes a philharmonic orchestra and diverse gastronomy typical of a large urban center.

As of 2025, the city's population is estimated at 1,187,974, making it the fourteenth most populous in Brazil. The economy is robust, holding the eleventh highest GDP in the nation and accounting for fifteen percent of all scientific research in the country. Campinas experiences a tropical savanna climate with humid subtropical influences, featuring warm summers and dry winters. The average annual rainfall is approximately 1,424 millimeters, with the wettest months occurring between October and April.