Is tap water safe in Hialeah?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Hialeah, FL?

Nearby USGS observations produce an estimate of 282 ppm (16.5 grains per gallon), classified as very hard. This is not a tap measurement.

Do I need a water softener in ZIP code 33018?

At 282 ppm, a correctly sized whole-house softener can reduce scale buildup and hard-water spotting. Treatment for hardness does not remove all health-related contaminants.

City water profile

Hialeah water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Hialeah, Florida.

Median indexed hardness

280PPM

4 indexed ZIPs

Range 280–282 PPM

State comparison: At state median
State hardness rank: #143 of 290
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Hialeah has 4 published ZIP profiles across Miami-Dade County. The indexed median is 280 PPM, compared with 280 PPM across Florida.

Among the 290 Floridacities with an indexed median, Hialeah ranks #143from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.

The 280–282 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard4 ZIPs

4 of 4 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 2.5 miles
Profiles with evidence: 4/4

Confidence labels

High: 0Moderate: 4Low: 0

Hialeah, City Of

PWSID FL4130604

Groundwater

System population served: 238,000
Last reported: May 18, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

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	FL4130604	Mar 1, 2026	Archived
Revised Total Coliform Rule	FL4130604	Dec 1, 2024	Archived
TTHM	FL4130604	Jul 1, 2024	Archived
Total Haloacetic Acids (HAA5)	FL4130604	Jul 1, 2024	Archived
TTHM	FL4130604	Jan 1, 2024	Archived
Total Haloacetic Acids (HAA5)	FL4130604	Jan 1, 2024	Archived
Revised Total Coliform Rule	FL4130604	Aug 1, 2023	Resolved
TTHM	FL4130604	Jul 1, 2023	Archived
Total Haloacetic Acids (HAA5)	FL4130604	Jul 1, 2023	Archived
TTHM	FL4130604	Apr 1, 2023	Archived

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Florida communities

Bal Harbour

Miami-Dade County

280 PPM median

Homestead

Miami-Dade County

273 PPM median

Miami

Miami-Dade County

280 PPM median

Miami Beach

Miami-Dade County

280 PPM median

North Miami

Miami-Dade County

280 PPM median

North Miami Beach

Miami-Dade County

280 PPM median

Search all 291 Florida cities →

Questions people ask

About water in Hialeah

Is the water hard?

The indexed city median is 280 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.