City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Lakeland, Florida.
Median indexed hardness
368PPM
6 indexed ZIPs
Range 363.5–371 PPM
City summary
Lakeland has 6 published ZIP profiles across Polk County. The indexed median is 368 PPM, compared with 280 PPM across Florida.
Among the 290 Floridacities with an indexed median, Lakeland ranks #8from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.
The 363.5–371 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
6 of 6 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.
ZIP code
368 PPM
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ZIP code
368 PPM
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ZIP code
367 PPM
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ZIP code
363.5 PPM
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ZIP code
368 PPM
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ZIP code
371 PPM
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Public water systems
PWSID FL6531014
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6530852
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6532348
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6535055
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6532347
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6532587
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6534868
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6531796
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6532779
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL6290595
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| Revised Total Coliform Rule | FL6531014 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6530852 | Mar 1, 2026 | Archived |
| E. COLI | FL6532348 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6532348 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6532587 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6534868 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6531796 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6532779 | Mar 1, 2026 | Archived |
| Revised Total Coliform Rule | FL6530079 | Mar 1, 2026 | Archived |
| E. COLI | FL6530079 | Mar 1, 2026 | Archived |
Practical next steps
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Questions people ask
The indexed city median is 368 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.