Water Hardness Atlas ZIP / postcode

Tap water hardness in Santa Catarina

We have published hardness data for 238 cities in Santa Catarina. The median is 34 mg/L; the hardest water is in Timbó Grande (292 mg/L), the softest in Guatambú (5 mg/L).

3 % of these cities have hard or very hard water (over 120 mg/L).

Portaria GM/MS nº 888/2021 sets a maximum of 300 mg/L CaCO₃ for total hardness (dureza total); operators report it in mg/L to SISAGUA.

Each dot is a place with published data; colour shows the hardness band.

Largest places, hardest first

mg/Lmg/L
Timbó Grande292292very hard
Balneário Barra do Sul186186very hard
São José do Cerrito147147hard
Treze Tílias135135hard
Irani128128hard
Passo de Torres101101moderately hard
Campo Belo do Sul101101moderately hard
Penha9494moderately hard
Botuverá9292moderately hard
Mondaí8989moderately hard
Rio das Antas8686moderately hard
Anchieta8484moderately hard
Iporã do Oeste7878moderately hard
Cunha Porã7575moderately hard
Rio dos Cedros7474moderately hard
Caibi7070moderately hard
Fraiburgo6969moderately hard
Itaiópolis6565moderately hard
Ipumirim6464moderately hard
Massaranduba6161moderately hard
Tangará6161moderately hard
São João do Sul6060soft
Caçador5959soft
Itajaí5959soft
São Lourenço do Oeste5757soft
São Miguel do Oeste5757soft
Ipuaçu5757soft
Guaraciaba5454soft
Maravilha5454soft
Itapiranga5353soft
São João do Oeste5151soft
Imbuia4949soft
Monte Carlo4747soft
Armazém4747soft
Saudades4646soft
Barra Velha4646soft
Anita Garibaldi4646soft
Balneário Camboriú4444soft
Bela Vista do Toldo4444soft
Navegantes4343soft
Água Doce4242soft
Balneário Piçarras4242soft
Turvo4242soft
Irineópolis4242soft
São Domingos4141soft
Pinhalzinho4141soft
Rio do Campo4141soft
Nova Erechim4141soft
Vitor Meireles4040soft
Porto União4040soft
Chapecó4040soft
Petrolândia4040soft
Seara3737soft
Xaxim3737soft
Grão-Pará3737soft
Xanxerê3636soft
Timbó3636soft
Catanduvas3636soft
Porto Belo3535soft
Rio do Sul3535soft
Santa Terezinha3434soft
Descanso3434soft
Santa Cecília3333soft
Agrolândia3232soft
Concórdia3232soft
Balneário Gaivota3030soft
Araranguá2929soft
Pomerode2929soft
Monte Castelo2929soft
Ituporanga2828soft
Paulo Lopes2828soft
Balneário Arroio do Silva2828soft
Treze de Maio2828soft
São Carlos2727soft
Laguna2727soft
Florianópolis2727soft
Joaçaba2626soft
Presidente Getúlio2626soft
Garopaba2525soft
Rio Negrinho2525soft
Itá2424soft
Papanduva2424soft
Dionísio Cerqueira2424soft
Indaial2323soft
Salete2323soft
Praia Grande2323soft
Canoinhas2222soft
Taió2222soft
Blumenau2121soft
Coronel Freitas2121soft
Bom Retiro2121soft
Sombrio2121soft
Alfredo Wagner2121soft
Araquari2121soft
Capivari de Baixo2020soft
Tubarão1919soft
Lebon Régis1919soft
Luiz Alves1919soft
São José do Cedro1818soft
Guaramirim1818soft
Ponte Serrada1818soft
Ibirama1717soft
Orleans1717soft
Correia Pinto1717soft
Mafra1717soft
Quilombo1717soft
Jacinto Machado1616soft
Major Vieira1616soft
Lages1616soft
Schroeder1616soft
Faxinal dos Guedes1616soft
Benedito Novo1515soft
São Joaquim1515soft
Camboriú1515soft
Pouso Redondo1515soft
Rio do Oeste1515soft
Trombudo Central1414soft
Urussanga1414soft
Lauro Müller1414soft
Campo Alegre1414soft
Curitibanos1313soft
São Ludgero1313soft
Jaraguá do Sul1212soft
Vidal Ramos1212soft
Otacílio Costa1212soft
Bombinhas1212soft
Joinville1212soft
Urubici1111soft
Itapoá1111soft
Palma Sola1111soft
Meleiro1111soft
Jaguaruna1111soft
Criciúma1010soft
Canelinha1010soft
Braço do Norte1010soft
Balneário Rincão1010soft
Guabiruba99soft
Abelardo Luz99soft
Gaspar99soft
Timbé do Sul88soft
Tijucas88soft
São Bento do Sul88soft
Corupá88soft
Campo Erê88soft
Itapema77soft
Imaruí77soft
Gravatal77soft
Ascurra77soft
Nova Trento66soft
São Francisco do Sul66soft

Other places (88)

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