City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Winter Haven, Florida.
Median indexed hardness
367PPM
3 indexed ZIPs
Range 367–367.5 PPM
City summary
Winter Haven has 3 published ZIP profiles across Polk County. The indexed median is 367 PPM, compared with 280 PPM across Florida.
Among the 290 Floridacities with an indexed median, Winter Haven ranks #15from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.
The 367–367.5 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
3 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Jan 13, 2016 to May 27, 2026.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID FL6531992
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6534609
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6531917
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6535064
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6535360
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6532715
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6534918
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6531313
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6531305
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6531991
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
3 unique active health-based records appear among associated systems. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| E. COLI | FL6534609 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6534609 | Mar 1, 2026 | Archived |
| E. COLI | FL6531305 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6531305 | Mar 1, 2026 | Archived |
| E. COLI | FL6530718 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6530718 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6530418 | Mar 1, 2026 | Archived |
| E. COLI | FL6530418 | Mar 1, 2026 | Archived |
| E. COLI | FL6530677 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6530677 | Mar 1, 2026 | Archived |
Practical next steps
Continue comparing
Questions people ask
The indexed city median is 367 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.