New Jersey Water Quality Report 2026

8 cities1,240,478 residentsUpdated March 2026

C73.5/100State Average
New Jersey has 8 cities in our database, serving approximately 1,240,478 residents. The average PurityMap score is 73.5/100 (Grade: C), which is 4.4 points below the US average of 77.9/100. Elizabeth has the cleanest water (82/100) while Newark scores lowest (63/100) due to elevated lead.
Is New Jersey Tap Water Safe to Drink?
Use Filtration

New Jersey tap water is use filtration based on our analysis of 8 water systems serving 1,240,478 residents. The average PurityMap score is 73.5/100 (Grade: C), which is 4.4 points below the national average.

  • PFAS detected in 1 of 8 cities (12%). Forever chemicals require reverse osmosis filtration.
  • 7 cities have lead at or above 5 ppb. Homes built before 1986 are at highest risk.
  • 8 cities use chloramine or have elevated chlorine residuals. Standard Brita pitchers do not remove chloramine.
Our Recommendation

We recommend an under-sink reverse osmosis system for drinking water in PFAS-affected areas of New Jersey. RO removes 99%+ of PFAS, lead, and other contaminants. For hard water cities, add a whole-house softener.

All 8 cities in New Jersey meet EPA federal drinking water standards as of 2026. However, EPA standards set legal limits — not health goals. Many contaminants are detected at levels that are legal but may still pose long-term health risks according to independent health organizations like the EWG.
New Jersey at a Glance
73.5Avg Purity Score
3.8Avg Hardness (GPG)
Moderate
1Cities with PFAS
0Cities with Hard Water
9.4Avg Lead (ppb)
140Avg TDS (ppm)

New Jersey is 4.4 points below the US average of 77.9/100. Hardness is 2.5 GPG below the US average of 6.3 GPG.

Best & Worst Water in New Jersey
Cleanest

Elizabeth

82/100

Source: Raritan River

Most Concerns

Newark

63/100

elevated lead

Cities with Most Water Concerns in New Jersey

Cities ranked by lowest score. Click any city for the full report and filter recommendations.

RankCityScoreHardnessLeadKey Issues
1Newark 63/1003.5 GPG18.0 ppbLead (18.0 ppb)
2Toms River 67/1002.5 GPG4.0 ppbPFAS (3.5 ppt)
3Jersey City 69/1003.2 GPG12.0 ppbLead (12.0 ppb)
4Camden 71/1004.0 GPG10.0 ppbLead (10.0 ppb)
5Trenton 77/1003.8 GPG8.0 ppbLead (8.0 ppb)
6Paterson 77/1004.5 GPG8.5 ppbLead (8.5 ppb)
7Elizabeth 82/1004.8 GPG7.5 ppbLead (7.5 ppb)
8Clifton 82/1004.5 GPG7.0 ppbLead (7.0 ppb)
Score Distribution

How New Jersey's 8 cities score on the PurityMap 0–100 scale:

Excellent (85–100)
0 cities
Good (70–84)
5 cities
Moderate (60–69)
3 cities
Poor (below 60)
0 cities
Largest Cities in New Jersey — Water Quality

Water quality for the most populated cities. Click any city for details.









CityPopulationScoreHardnessKey Issues
Newark312K 63/1003.5 GPGLead
Jersey City292K 69/1003.2 GPGLead
Paterson145K 77/1004.5 GPGLead
Elizabeth137K 82/1004.8 GPGLead
Toms River95K 67/1002.5 GPGPFAS
Trenton91K 77/1003.8 GPGLead
Clifton90K 82/1004.5 GPGLead
Camden77K 71/1004.0 GPGLead
Hard Water in New Jersey

New Jersey generally has soft to moderate water. Average: 3.8 GPG (Moderate). Most residents do not need a softener.

PFAS in New Jersey Water

PFAS have been detected in 1 of 8 cities (12%) in New Jersey. Highest: Toms River at 3.5 ppt. Affected: Toms River. A reverse osmosis filter is recommended. 5 cities have pending PFAS testing data.

Lead in New Jersey Water

7 cities in New Jersey have lead at or above 5 ppb. Highest: Newark at 18.0 ppb. No safe level of lead exists. Cities: Newark, Jersey City, Camden, Paterson, Trenton, Elizabeth, Clifton.

Water Sources in New Jersey

Where New Jersey gets its drinking water, based on 8 water systems.



Source TypeCities% of Total
Surface Water788%
Groundwater112%
Recommended Filter for New Jersey

1 cities have PFAS. Reverse osmosis is the most effective solution.

All New Jersey Cities — Ranked
#CityPop.ScoreHardnessLeadPFASTDS
1Newark312K 63/1003.5 GPG (Soft)18.0 ppb❓ Pending125 ppm
2Toms River95K 67/1002.5 GPG (Soft)4.0 ppb⚠️ Yes (3.5 ppt)110 ppm
3Jersey City292K 69/1003.2 GPG (Soft)12.0 ppb❓ Pending115 ppm
4Camden77K 71/1004.0 GPG (Moderate)10.0 ppb❓ Pending145 ppm
5Trenton91K 77/1003.8 GPG (Moderate)8.0 ppb❓ Pending135 ppm
6Paterson145K 77/1004.5 GPG (Moderate)8.5 ppb❓ Pending160 ppm
7Elizabeth137K 82/1004.8 GPG (Moderate)7.5 ppb✅ No170 ppm
8Clifton90K 82/1004.5 GPG (Moderate)7.0 ppb✅ No160 ppm
Water Utilities in New Jersey

New Jersey has 7 utilities. Major: Newark Department of Water and Sewer, Suez Water New Jersey, Passaic Valley Water Commission, New Jersey American Water, Trenton Water Works.

Sources: Pequannock Wanaque and Rockaway watersheds, Hackensack River and Catskill system, Passaic River, Raritan River, Delaware River.

Frequently Asked Questions
Which city has the best water in New Jersey?
Elizabeth scores highest at 82/100. Source: Raritan River.
Which city has the worst water in New Jersey?
Newark scores lowest at 63/100 due to elevated lead.
Is New Jersey water hard or soft?
Average hardness: 3.8 GPG (Moderate). 2.5 GPG below the US average of 6.3 GPG. 0 of 8 cities have hard/very hard water.
Has PFAS been found in New Jersey water?
PFAS have been detected in 1 of 8 cities (12%) in New Jersey. Highest: Toms River at 3.5 ppt. Affected: Toms River. A reverse osmosis filter is recommended. 5 cities have pending PFAS testing data.
What water filter should I use in New Jersey?
1 cities have PFAS. Reverse osmosis is the most effective solution.
How does New Jersey water compare to the US average?
Score: 73.5/100 (4.4 points below US avg 77.9). Hardness: 3.8 GPG (2.5 GPG below US avg 6.3).
Where does New Jersey get its drinking water?Where does New Jersey get its drinking water?
New Jersey water comes from: Surface Water: 7 cities (88%), Groundwater: 1 cities (12%).
Data Sources & Methodology
  • EPA Safe Drinking Water Information System
  • EWG Tap Water Database
  • State utility Consumer Confidence Reports
  • USGS regional water monitoring data

PurityMap compiles publicly available data and does not perform independent testing.

All New Jersey Cities with Water Reports

8 city water quality reports available for New Jersey.

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Compare water quality reports across all 50 US states

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