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City water profile

Raleigh water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Raleigh, North Carolina.

Median indexed hardness

40PPM

17 indexed ZIPs

Range 39.8–40.2 PPM

State comparison
1 PPM below
State hardness rank
#250 of 381
Matched utilities
10
Active health records
2

City summary

What the indexed records say

Raleigh has 17 published ZIP profiles across Wake County. The indexed median is 40 PPM, compared with 41 PPM across North Carolina.

Among the 381 North Carolinacities with an indexed median, Raleigh ranks #250from highest to lowest. Across all 519 state ZIP profiles, available estimates run from 4.7to 267.5 PPM.

The 39.8–40.2 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft17 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

17 of 17 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
1.9 miles
Profiles with evidence
17/17

Confidence labels

High: 0Moderate: 17Low: 0

Observation window: Jan 14, 2016 to Jun 9, 2026.

ZIP directory

Water reports in Raleigh

Open a ZIP for site-level provenance and measurements.

ZIP code

27601

Soft

39.8 PPM

Nearest site
0.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

27603

Soft

39.8 PPM

Nearest site
4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

27604

Soft

39.8 PPM

Nearest site
1.4 mi
Confidence
Moderate

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ZIP code

27605

Soft

39.8 PPM

Nearest site
0.5 mi
Confidence
Moderate

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ZIP code

27606

Soft

39.8 PPM

Nearest site
2 mi
Confidence
Moderate

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ZIP code

27607

Soft

39.8 PPM

Nearest site
3.1 mi
Confidence
Moderate

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ZIP code

27608

Soft

39.8 PPM

Nearest site
0.9 mi
Confidence
Moderate

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ZIP code

27609

Soft

39.8 PPM

Nearest site
1.8 mi
Confidence
Moderate

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ZIP code

27610

Soft

39.8 PPM

Nearest site
4.4 mi
Confidence
Moderate

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ZIP code

27612

Soft

40.2 PPM

Nearest site
2.4 mi
Confidence
Moderate

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ZIP code

27613

Soft

40.2 PPM

Nearest site
2.4 mi
Confidence
Moderate

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ZIP code

27614

Soft

40.2 PPM

Nearest site
3.7 mi
Confidence
Moderate

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ZIP code

27615

Soft

39.8 PPM

Nearest site
1.9 mi
Confidence
Moderate

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ZIP code

27616

Soft

39.8 PPM

Nearest site
3.4 mi
Confidence
Moderate

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ZIP code

27617

Soft

40.2 PPM

Nearest site
1.6 mi
Confidence
Moderate

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ZIP code

27695

Soft

39.8 PPM

Nearest site
0.7 mi
Confidence
Moderate

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ZIP code

27697

Soft

39.8 PPM

Nearest site
1 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Raleigh, City Of

PWSID NC0392010

Surface water
System population served
650,000
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Bayleaf Master

PWSID NC0392373

Groundwater
System population served
16,715
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Stonehenge S/d

PWSID NC0392298

Groundwater
System population served
1,840
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Royal Senter Ridge S/d

PWSID NC4392140

Groundwater
System population served
740
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Mallards Crossing S/d

PWSID NC0392356

Groundwater
System population served
709
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Myatt Mill S/d

PWSID NC0392085

Groundwater
System population served
676
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Lynnhaven-Crowsdale

PWSID NC0392253

Groundwater
System population served
650
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Glendale Master System

PWSID NC0392293

Groundwater
System population served
633
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

All Star Mhp

PWSID NC0392102

Groundwater
System population served
530
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Briarwood/kildaire

PWSID NC0392383

Groundwater
System population served
517
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

2 unique active health-based records appear among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Combined Radium (-226 and -228)NC0392102Apr 1, 2026Addressed · health-based
Lead and Copper RuleNC0392150Apr 1, 2026Addressed
Gross Alpha, Excl. Radon and UNC4092199Apr 1, 2026Addressed · health-based
Lead and Copper RuleNC4092199Apr 1, 2026Addressed
Public NoticeNC4092199Mar 6, 2026Addressed
Gross Alpha, Excl. Radon and UNC4092168Jan 1, 2026Resolved · health-based
Lead and Copper RuleNC0392149Jan 1, 2026Resolved
Gross Alpha, Excl. Radon and UNC4092199Jan 1, 2026Archived · health-based
Public NoticeNC4092199Dec 15, 2025Resolved
Public NoticeNC0392214Nov 15, 2025Addressed

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Raleigh

Is the water hard?

The indexed city median is 40 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.