Is tap water safe in Jupiter?

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 Jupiter, FL?

Nearby USGS observations produce an estimate of 289 ppm (16.9 grains per gallon), classified as very hard. This is not a tap measurement.

Do I need a water softener in ZIP code 33458?

At 289 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

Jupiter water quality

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

Median indexed hardness

289PPM

2 indexed ZIPs

Range 289–289 PPM

State comparison: 9 PPM above
State hardness rank: #107 of 290
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Jupiter has 2 published ZIP profiles across Palm Beach County. The indexed median is 289 PPM, compared with 280 PPM across Florida.

Among the 290 Floridacities with an indexed median, Jupiter ranks #107from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.

The 289–289 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 hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 3.7 miles
Profiles with evidence: 2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jun 16, 2016 to Jan 27, 2026.

ZIP directory

Water reports in Jupiter

Open a ZIP for site-level provenance and measurements.

ZIP code

33458

Very Hard

289 PPM

Nearest site: 0.4 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

33477

Very Hard

289 PPM

Nearest site: 3.7 mi
Confidence: Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Jupiter Public Water System,town Of

PWSID FL4501491

Groundwater

System population served: 94,929
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
E. COLI	FL4501491	Nov 1, 2025	Resolved
E. COLI	FL4501491	Oct 1, 2024	Resolved
Revised Total Coliform Rule	FL4501491	May 1, 2024	Resolved
E. COLI	FL4501491	May 1, 2024	Resolved
Total Haloacetic Acids (HAA5)	FL4501491	Apr 1, 2024	Archived
TTHM	FL4501491	Apr 1, 2024	Archived
E. COLI	FL4501491	Nov 1, 2023	Resolved
E. COLI	FL4501491	Nov 1, 2023	Resolved
E. COLI	FL4501491	Nov 1, 2023	Resolved

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

Boca Raton

Palm Beach County

282 PPM median

Boynton Beach

Palm Beach County

284 PPM median

Delray Beach

Palm Beach County

284 PPM median

Lake Worth Beach

Palm Beach County

285 PPM median

Lantana

Palm Beach County

285 PPM median

Pahokee

Palm Beach County

290 PPM median

Search all 291 Florida cities →

Questions people ask

About water in Jupiter

Is the water hard?

The indexed city median is 289 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.