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Water Hardness in 18088

Walnutport, Pennsylvania · Northampton County

119 PPM
6.9 GPG
Slightly Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 9 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 9 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
4 verified treated-water sources
9 matched systems total for this ZIP; treated-water reports are prioritized when available.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems Serving 18088

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

9 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
City Of Bethlehem
PA3480046
Moderately Hard
120 PPMsurface water117,259 servedVerified — Annual Water Quality Report
Source water: 32 PPM
Easton Area Water System
PA3480050
Moderately Hard
120 PPMsurface water96,867 servedVerified — Annual Water Quality Report
Source water: 86 PPM
Northampton Boro Muni Auth
PA3480057
Moderately Hard
120 PPMsurface water40,000 servedVerified — Annual Water Quality Report
Source water: 32 PPM
Paw Blue Mountain Division
PA3480055
Moderately Hard
120 PPMsurface water23,763 servedVerified — Annual Water Quality Report
Source water: 81 PPM
Walnutport Authority
PA3480032
Soft
32 PPMsurface water3,000 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

1803512018086120180591201801212018038120180715818080118180671201807912018037120180301018244120

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Water Hardness Test Kit
Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)
Salt-Free Water Conditioner
Our PickSpringWell Salt-Free Cartridge

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Walnutport, PA (18088).

Submit Your Data

Frequently Asked Questions

Is the water hard in Walnutport, PA (18088)?

The average water hardness in 18088 is 119 PPM (6.9 GPG), which is classified as slightly hard.

Do I need a water softener in 18088?

At 119 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 18088 safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve 18088?

Zip code 18088 in Walnutport, Pennsylvania is served by 9 water systems.

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