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City water profile

Nags Head water quality

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

Median indexed hardness

181PPM

One indexed ZIP

Range 181–181 PPM

State comparison
140 PPM above
State hardness rank
#55 of 381
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Nags Head has 1 published ZIP profile across Dare County. The indexed median is 181 PPM, compared with 41 PPM across North Carolina.

Among the 381 North Carolinacities with an indexed median, Nags Head ranks #55from highest to lowest. Across all 519 state ZIP profiles, available estimates run from 4.7to 267.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
40.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jan 29, 2016 to Aug 12, 2025.

ZIP directory

Water reports in Nags Head

Open a ZIP for site-level provenance and measurements.

ZIP code

27959

Very Hard

181 PPM

Nearest site
40.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Nags Head, Town Of

PWSID NC0428010

Groundwater
System population served
3,125
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

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

No violation records are included in the current lookback window.

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 Nags Head

Is the water hard?

The indexed city median is 181 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.