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Water Hardness in 27530

Grantham, North Carolina · Wayne County

19 PPM
1.1 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 4 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 4 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
3 USGS-backed sources
4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
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 27530

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.

4 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.
Wayne Water Districts
NC0496065
Soft
14 PPMgroundwater39,403 servedHigh Confidence — USGS Monitoring
Goldsboro, City Of
NC0496010
Soft
22 PPMsurface water34,959 servedHigh Confidence — USGS Monitoring
Wayne Water Districts Purchase
NC6096001
Soft
22 PPMsurface water16,302 servedHigh Confidence — USGS Monitoring
Seymour Johnson Afb
NC0496055
Soft
22 PPMsurface water6,875 servedEstimated — Nearby Data

Nearby Zip Codes

275692528333192786319275341827568252783019275552528365212855134283255627542252857819

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Grantham, NC (27530).

Submit Your Data

Frequently Asked Questions

Is the water hard in Grantham, NC (27530)?

The average water hardness in 27530 is 19 PPM (1.1 GPG), which is classified as soft.

Do I need a water softener in 27530?

At 19 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 27530 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 27530?

Zip code 27530 in Grantham, North Carolina is served by 4 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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