Major favelas

Rocinha

Built across a steep hillside between Gávea and São Conrado, Rocinha is the most populous favela in Brazil according to the 2022 census, and one of the most densely populated neighborhoods in the country.

Geography and setting

Rocinha rises across the eastern slopes of the Dois Irmãos massif, sandwiched between two of Rio's wealthiest South Zone neighborhoods: Gávea to the north and São Conrado to the south. The Lagoa-Barra freeway (Auto-Estrada Lagoa-Barra) cuts past its lower edge, connecting the lagoon district to Barra da Tijuca through the Zuzu Angel tunnel. The Tijuca National Park borders the favela on its upper edge, constraining further uphill expansion.

The terrain is steep — slopes regularly exceed 30 degrees — and the built form is characteristically vertical, with structures of four to six stories common, occasionally more. Streets that are passable to vehicles are limited; most movement within the favela is by stairs (becos) and by motorcycle taxi.

History

The hillside was used in the early twentieth century for small-scale agriculture, including manioc and bananas; the name Rocinha ("little plantation") comes from this agricultural use. Settlement began in earnest in the 1920s and 1930s as migrants and displaced Rio residents built on the slope. Major expansion came in the post-war decades, accelerated by migration from the Northeast and from rural Rio de Janeiro state, and by the displacement of residents from other South Zone favelas during the removal era of the 1960s and early 1970s.

By the 1980s Rocinha was the largest favela in Rio. In 1993 the city of Rio formally designated it a bairro, giving it the same administrative status as adjacent neighborhoods, though without altering most of its physical or tenure situation. The community was a beneficiary of the Favela-Bairro program in the late 1990s and 2000s and of PAC investments in the 2000s and 2010s, the latter including a footbridge designed by Oscar Niemeyer over the Lagoa-Barra freeway and an attempted sewerage and slope-stabilization program.

Population and demographics

The IBGE Census 2010 recorded a population of approximately 69,356 in Rocinha. This figure has been disputed since publication. Rocinha's residents' association and local researchers, including those affiliated with the Pontifical Catholic University of Rio (PUC-Rio) and the Federal University of Rio de Janeiro (UFRJ), have argued that the true population exceeds 100,000, citing electricity consumption, school enrollment, and ground-truth household surveys. The 2022 census, published in November 2024, counted 72,021 residents, making Rocinha the most populous favela in Brazil, just ahead of Sol Nascente in the Federal District (70,908). The figure is higher than in 2010 but still well below community estimates, and the argument over undercounting continues. See The largest favelas in Brazil.

The population is racially mixed but with a substantial majority self-identifying as pardo or preto. A significant share of residents are migrants from Northeastern states, particularly Paraíba and Ceará, and the community hosts active regional associations. Income distribution is wide but concentrated below the metropolitan median.

Economy and infrastructure

Rocinha has a developed internal commercial economy. The main street, Estrada da Gávea, hosts banks, supermarkets, electronics retailers, pharmacies, restaurants, and a substantial range of services. Local employment includes retail, construction, services aimed at the surrounding South Zone, and informal-economy activity. A significant number of residents commute to formal jobs in Gávea, São Conrado, Leblon, and Ipanema, and the proximity to these high-wage neighborhoods is one of the structural reasons Rocinha's property and rental markets are unusually developed for a favela.

Most of the community has piped water (CEDAE) and metered electricity (Light), though service quality varies with elevation and density. Sewerage remains the most acute infrastructure deficit; the PAC-era sewerage works were widely criticized as incomplete. Internet penetration is high, served by both formal providers and local internet cooperatives.

Public security

Public security in Rocinha has had several phases. Through much of the 1990s and 2000s the community was understood to be under the territorial influence of one of Rio's major drug-trafficking organizations; this was confirmed by federal and state operations including the November 2011 occupation that preceded the installation of a UPP in the favela. The UPP-Rocinha period ran from 2012 onward, with mixed and disputed results. Lethal incidents declined in some years and rose in others; a high-profile 2013 case involving the disappearance of bricklayer Amarildo de Souza, killed after being taken to a UPP base, became a national symbol of the program's failures.

From 2017 onward the UPP framework deteriorated as the state of Rio's fiscal crisis defunded the program; large-scale armed conflicts returned. The community has been the site of repeated police operations in the years since.

Culture and notable residents

Rocinha hosts cultural institutions including local funk and samba traditions, residents' libraries, and the Rocinha Cultural Center. The community has been the site of one of Rio's longest-running blocos de carnaval. The community has produced active scholars, journalists, and artists, and is the home base of organizations including the União Pró-Melhoramentos dos Moradores da Rocinha.

Further reading

For context on Rocinha's place in Rio's broader favela landscape, see A history of favelas and the entry on the UPP program. Janice Perlman's Favela: Four Decades includes substantial material on Rocinha and on the South Zone communities more broadly.