Is Jupiter tap water safe?

We don't give a safe or unsafe verdict. Here is what the public records show for Town of Jupiter Water Utilities: 0 of 10 detected contaminants were above the health guidelines we use (2018-2024), no health-based violations were recorded since July 1, 2021 (EPA SDWIS), and the Water Score is 100/100. These records can be one to three years old and may not reflect the water at your tap. That isn't a clean bill of health or a health finding. EPA's national files don't hold sample results for most regulated contaminants. For health questions, ask your utility or your doctor.

33458 Jupiter water quality

Data updated October 24, 2026

Water Score · Strong

Jupiter Water Utilities

ZIP 33458 · Jupiter

Based on EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024. Based on public utility data, not a test of your tap. Not medical advice.

Drinking glasses with cloudy spots — **Spots on glasses**

A faucet crusted with white buildup — **Crusty faucets**

Shower glass with a cloudy film — **Film on the shower**

A glass of tap water at a kitchen sink — **Tastes like a pool**

These show common South Florida water issues.

About ZIP 33458

Ranked #1 of 286 Florida ZIP codes by Water Score, as of October 24, 2026. Ranked #1 of 70 Palm Beach County ZIP codes by Water Score, as of October 24, 2026.

Median home value: $550,700 (Census ACS 2023 5-year)
Median household income: $107,626 (Census ACS 2023 5-year)
Households: 20,944 (Census ACS 2023 5-year)
Owner-occupied share: 75% (Census ACS 2023 5-year)

ZCTA, approximates ZIP

Who supplies the water

ZIP 33458 is served by one utility: Town of Jupiter Water Utilities (91%).

A neighboring ZIP code, 33468 (Jupiter), is served mainly by the same utility, Town of Jupiter Water Utilities. Its Water Score is also 100/100.

Your utility at a glance

Utility: Town of Jupiter Water Utilities
EPA water system ID (PWSID): FL4501491
People served: 94,929
Water source: Ground water
Health-based violations: None recorded (EPA SDWIS, July to September 2026, since July 1, 2021)

How this ZIP compares

See the full report

ZIP 33458High-confidence match

Water report for Town of Jupiter Water Utilities, ZIP 33458

Jupiter, Palm Beach County

Data updated October 24, 2026

According to EPA water system boundaries, ZIP 33458 (Jupiter, Palm Beach County) is served mainly by Town of Jupiter Water Utilities, which does not buy water from another system, according to EPA SDWA records. In EPA SDWA, EPA UCMR and Florida DEP data from 2018-2024, none of the 10 detected contaminants are above published health guidelines. The Water Score is 100 out of 100, in the Strong band. Scored against health guidelines that are stricter than legal limits, using public utility data. Not a test of your tap.

Water Score

Higher is better. The score starts at 100 and goes down for each contaminant above its health guideline.

Based on EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024. Educational estimate from public data, not medical advice.

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Every result, with its health guideline and legal limit

Each bar is the level reported for ZIP 33458. It is drawn against its own health guideline, so rows are not comparable with each other. The ink line is the health guideline, with its publisher named on each row, and the dashed line is EPA's legal limit or, for PFAS, the level in EPA's 2024 rule. Log scale: each step right is ten times more.

Radium-226 + Radium-2282.3 pCi/L
Health guideline None publishedLegal limit 5 pCi/L
sum of the radium-226 and radium-228 averages
Haloacetic acids (HAA5)1.57 ppb
Health guideline None publishedLegal limit 60 ppb
average of all samples
highest sample 13 ppb
detected in 52 of 80 samples
Total trihalomethanes (TTHMs)1.38 ppb
Health guideline None publishedLegal limit 80 ppb
average of all samples
highest sample 4.6 ppb
detected in 59 of 80 samples
Fluoride22 ppb
Health guideline None publishedLegal limit 4,000 ppb
average of all samples
highest sample 44 ppb
detected in 1 of 2 samples
Nitrate53.7 ppb
Health guideline None publishedLegal limit 10,000 ppb
average of all samples
highest sample 147 ppb
detected in 3 of 6 samples
Barium1.7 ppb
Health guideline None publishedLegal limit 2,000 ppb
average of all samples
highest sample 1.7 ppb
detected in 1 of 1 sample
Haloacetic acids (HAA9)4.39 ppb
Health guideline None publishedLegal limit No federal limit
average of all samples
highest sample 20.6 ppb
detected in 8 of 8 samples
Lead0.9 ppb
Health guideline None publishedEPA action level (90th percentile) 15 ppb (EPA action level, 90th percentile)
EPA's lead action level drops to 10 ppb on November 1, 2027.

See all 10 ›

Results for ZIP 33458: level reported, health guideline, and legal limit or action level
Contaminant	Level reported	Health guideline (publisher)	Legal limit or action level	Multiple of guideline
Radium-226 + Radium-228	2.3 pCi/L. sum of the radium-226 and radium-228 averages	None published	5 pCi/L	Not above its guideline, or no guideline
Haloacetic acids (HAA5)	1.57 ppb. average of all samples highest sample 13 ppb detected in 52 of 80 samples	None published	60 ppb	Not above its guideline, or no guideline
Total trihalomethanes (TTHMs)	1.38 ppb. average of all samples highest sample 4.6 ppb detected in 59 of 80 samples	None published	80 ppb	Not above its guideline, or no guideline
Fluoride	22 ppb. average of all samples highest sample 44 ppb detected in 1 of 2 samples	None published	4,000 ppb	Not above its guideline, or no guideline
Nitrate	53.7 ppb. average of all samples highest sample 147 ppb detected in 3 of 6 samples	None published	10,000 ppb	Not above its guideline, or no guideline
Barium	1.7 ppb. average of all samples highest sample 1.7 ppb detected in 1 of 1 sample	None published	2,000 ppb	Not above its guideline, or no guideline
Haloacetic acids (HAA9)	4.39 ppb. average of all samples highest sample 20.6 ppb detected in 8 of 8 samples	None published	No federal limit	Not above its guideline, or no guideline
Lead	0.9 ppb	None published	15 ppb (EPA action level, 90th percentile)	Not above its guideline, or no guideline
Manganese	3 ppb. average of all samples highest sample 3 ppb detected in 1 of 1 sample	None published	No federal limit	Not above its guideline, or no guideline
Radium-226	0.9 pCi/L. average of all samples highest sample 0.9 pCi/L detected in 1 of 1 sample	None published	Counts toward the combined 5 pCi/L limit for radium-226 and radium-228	Not above its guideline, or no guideline

Source: EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024. Educational estimate from public data, not medical advice.

What was found

Above published health guidelines (0)

No detected contaminants were above their published health guidelines in the most recent data.

Lead

Lead: 0.9 ppb (90th percentile of tap samples, January to December 2024). EPA action level (90th percentile): 15 ppb.

Lead is measured at the tap in homes selected because they are most likely to have lead plumbing. EPA says lead in drinking water mainly comes from pipes, solder and fixtures in service lines and buildings, not from the water source. Your home's plumbing matters more than the utility's number. EPA's goal (MCLG) for lead is zero.

California's public health goal for lead is 0.2 ppb.

If your home is older or may have a lead service line, ask your utility (it must keep a service-line inventory) or have your tap tested by a state-certified lab.

Other contaminants detected (9)

Other contaminants detected, within their health guidelines or without one
Contaminant	This utility	Legal limit or action level	Health guideline	Years
Nitrate	53.7 ppbaverage of all sampleshighest sample 147 ppbdetected in 3 of 6 samples	10,000 ppb	None published	2018-2022
Fluoride	22 ppbaverage of all sampleshighest sample 44 ppbdetected in 1 of 2 samples	4,000 ppb	None published	2020
Haloacetic acids (HAA9)	4.39 ppbaverage of all sampleshighest sample 20.6 ppbdetected in 8 of 8 samples	No federal limit	None published	2018-2019
Manganese	3 ppbaverage of all sampleshighest sample 3 ppbdetected in 1 of 1 sample	No federal limit	None published	2020
Radium-226 + Radium-228	2.3 pCi/Lsum of the radium-226 and radium-228 averages	5 pCi/L	None published	2020
Barium	1.7 ppbaverage of all sampleshighest sample 1.7 ppbdetected in 1 of 1 sample	2,000 ppb	None published	2020
Haloacetic acids (HAA5)	1.57 ppbaverage of all sampleshighest sample 13 ppbdetected in 52 of 80 samples	60 ppb	None published	2018-2022
Total trihalomethanes (TTHMs)	1.38 ppbaverage of all sampleshighest sample 4.6 ppbdetected in 59 of 80 samples	80 ppb	None published	2018-2022
Radium-226	0.9 pCi/Laverage of all sampleshighest sample 0.9 pCi/Ldetected in 1 of 1 sample	Counts toward the combined 5 pCi/L limit for radium-226 and radium-228	None published	2020

Questions people ask

Utilities serving ZIP 33458
Utility	Share of the ZIP area	Role
Town of Jupiter Water Utilities	91%	Main utility (this report)

Which water utility serves ZIP 33458?

Town of Jupiter Water Utilities (EPA water system FL4501491) is the main utility for ZIP 33458, based on EPA Water System Boundaries (CWS service area boundaries) v3.0, March 2026 release overlaid on Census ZIP code areas. Your water bill names your utility.

Does the utility serving ZIP 33458 buy water from another system?

No. EPA SDWA records (July to September 2026 extract) show no water purchases by Town of Jupiter Water Utilities from another system.

How many contaminants in ZIP 33458 are above published health guidelines?

None of the 10 detected contaminants were above their published health guidelines in EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024.

How is the Water Score for ZIP 33458 calculated?

The score starts at 100. It goes down 8 for each contaminant above a cited health guideline whose source states a cancer basis, 5 for each other contaminant above its cited guideline, 5 for each of PFOA and PFOS averaging above the 4.0 ppt limit in EPA's 2024 PFAS rule, 10 for each contaminant whose average of all samples is above EPA's legal limit (instead of its guideline step), and 1 for each contaminant with a cited cancer-based guideline that is detected below it. Only guidelines with a cited document count. The lowest score is 5. Higher is better. For this report: nothing is subtracted, so the score is 100.

What is the difference between a health guideline and a legal limit?

A legal limit is an enforceable standard, set by the EPA under the Safe Drinking Water Act. Limits weigh health research together with the cost and feasibility of treatment. A health guideline is published by public-health sources and based on health research alone. A utility can meet every legal limit and still be above a published health guideline.

How recent is the data for ZIP 33458?

Test results cover 2018-2024. EPA compliance records come from the July to September 2026 extract. Data may be one to three years old and may not reflect water at your tap.

33458 Jupiter water quality

Jupiter Water Utilities