I have listed below the 44 cities on the Brazilian portion of the Iguassu River that belong to what I am proposing to call the Iguassu River Community.
For those driving from Curitiba to Iguassu Falls (Foz do Iguaçu)
Balsa Nova Porto Amazonas Palmeira São J. do Triunfo Paulo Frontin Paula Freitas União da Vitória Cruz Machado Pinhão Reserva do Iguaçu Foz do Jordão Candói Porto Barreto Rio Bonito do Iguaçu Quedas do Iguaçu Três Barras do Paraná Boa Vista da Aparecida Capitão Leônidas Marques Céu Azul Matelândia Serranópolis São Miguel do Iguaçu Santa Terezinha de Itaipu Foz do Iguaçu
Cities along the Lefthand side (Curitiba-Foz )
Fazenda Rio Grande Contenda Lapa Antônio Olinto Porto Vitória Bituruna Coronel Domingos Soares Mangueirinha Chopinzinho Saudade do Iguaçu Sulina São João São Jorge do Oeste Cruzeiro do Iguaçu Boa Esperança do Iguaçu Nova Prata do Iguaçu Realeza Capanema
Rio Negro Rio da Várzea Rio Passa Dois Rio Potinga Rio Areia Rio Pinhão Rio Jordão Rio Cavernoso Rio das Cabras Rio Guarani Rio Adelaide Rio Andrade Rio Gonçalves Dias* Rio Floriano* Rio Silva Jardim* Rio São João* Rio Tamanduá Carimã Creek
* Rivers that flow into the Iguaçu (Iguassu) National Park and will empty into the Iguassu River. The Floriano River is the only one that has its complete course within the Iguassu National Park.
Main Left Bank Tributaries
São João Rio Canoinhas Rio Timbó Rio Jangada Rio Iratim Rio Chopim Rio Capanema Rio Santo Antônio / San Antonio*
The San Antonio / Santo Antônio is an international river marking the border between Argentina and Brazil.
Dams on the Middle Iguassu River
Governor Bento Munhoz da Rocha Neto Dam City of Pinhão, Governor Ney Aminthas de Barros Braga Dam, City of Mangueirinha, Usina de Salto Caxias, City of Capitain Leônidas Marques Salto Santiago Dam, City of Saudades do Iguaçu, Salto Osório, City of Quedas do Iguaçu,
These are hydroelectrical power plants not to be confused to dams and reservoirs for drinking purposes on the Upper Iguaçu Basin and other basins past or around Curitiba.