Hawaii Water Quality
Water hardness and quality data for 44 cities in Hawaii, USA.
46 mg/L
State average
🟢 Soft
Avg category
44
Cities tracked
Honolulu
Pop. 350,964
PFAS: 1.3 ppt
Full report →Aliamanu / Salt Lakes / Foster Village
Unincorporated area
Pop. 38,833
PFAS: 0.9 ppt
Full report →East Honolulu
Unincorporated area
Pop. 49,914
PFAS: 0.8 ppt
Full report →Hawai'i Kai
Pop. 30,620
PFAS: 1.2 ppt
Full report →Hilo
Pop. 43,263
PFAS: 1.2 ppt
Full report →Joint Base Pearl Harbor Hickam
Unincorporated area
Pop. 42,184
PFAS: 0.7 ppt
Full report →Kailua
Pop. 38,635
PFAS: 1 ppt
Full report →Kalihi-Palama
Pop. 43,805
PFAS: 1.1 ppt
Full report →Kaneohe
Pop. 34,597
PFAS: 1.2 ppt
Full report →Makakilo / Kapolei / Honokai Hale
Pop. 46,389
PFAS: 0.9 ppt
Full report →Makiki / Lower Punchbowl / Tantalus
Pop. 31,434
PFAS: 0.6 ppt
Full report →Pearl City
Pop. 47,698
PFAS: 0.8 ppt
Full report →Waipahu
Pop. 38,216
PFAS: 0.8 ppt
Full report →'Ewa Beach
Pop. 16,415
PFAS: 0.9 ppt
Full report →'Ewa Gentry
Pop. 22,690
PFAS: 0.9 ppt
Full report →Airport
Pop. 28,916
PFAS: 1.3 ppt
Full report →Ala Moana - Kaka'ako
Pop. 18,957
PFAS: 1.3 ppt
Full report →Diamond Head / Kapahulu / Saint Louis Heights
Pop. 19,769
PFAS: 1.3 ppt
Full report →Downtown
Pop. 12,381
PFAS: 0.9 ppt
Full report →Halawa
Pop. 14,014
PFAS: 1 ppt
Full report →Halawa Heights
Pop. 13,408
PFAS: 1 ppt
Full report →Kahului
Pop. 26,337
PFAS: 1 ppt
Full report →Kaimuki
Pop. 20,878
PFAS: 1 ppt
Full report →Kalihi Valley
Pop. 20,647
PFAS: 1.1 ppt
Full report →Kapolei
Pop. 15,186
PFAS: 1.1 ppt
Full report →Kihei
Pop. 20,881
PFAS: 0.7 ppt
Full report →Koolauloa
Pop. 15,697
PFAS: 0.9 ppt
Full report →Kuliouou - Kalani Iki
Pop. 16,195
PFAS: 1.2 ppt
Full report →Liliha - Kapalama
Pop. 24,953
PFAS: 0.6 ppt
Full report →Makakilo
Pop. 18,248
PFAS: 1.5 ppt
Full report →Makakilo City
Pop. 15,383
PFAS: 1.2 ppt
Full report →Manoa
Pop. 23,343
PFAS: 0.6 ppt
Full report →McCully - Moiliili
Pop. 28,249
PFAS: 0.7 ppt
Full report →Mililani Mauka / Launani Valley
Pop. 18,072
PFAS: 0.9 ppt
Full report →Mililani Town
Pop. 27,629
PFAS: 1.3 ppt
Full report →Mo'ili'ili
Pop. 24,778
PFAS: 1.4 ppt
Full report →Nanakuli
Pop. 12,666
PFAS: 1.5 ppt
Full report →Niu Valley
Pop. 19,250
PFAS: 1.5 ppt
Full report →Nuuanu - Punchbowl
Pop. 16,205
PFAS: 1.3 ppt
Full report →Palolo
Pop. 12,620
PFAS: 0.8 ppt
Full report →Royal Kunia
Pop. 14,525
PFAS: 1.5 ppt
Full report →Schofield Barracks
Pop. 16,370
PFAS: 1.5 ppt
Full report →Wahiawa
Pop. 17,821
PFAS: 1.5 ppt
Full report →Waianae
Pop. 13,177
PFAS: 0.6 ppt
Full report →Waikiki
Pop. 19,862
PFAS: 0.7 ppt
Full report →Wailuku
Pop. 15,313
PFAS: 0.7 ppt
Full report →Waimalu
Pop. 13,730
PFAS: 0.7 ppt
Full report →