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City water profile

Kingsport water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Kingsport, Tennessee.

Median indexed hardness

177PPM

4 indexed ZIPs

Range 176.5–176.5 PPM

State comparison
127 PPM above
State hardness rank
#17 of 222
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Kingsport has 4 published ZIP profiles across Sullivan County. The indexed median is 177 PPM, compared with 50 PPM across Tennessee.

Among the 222 Tennesseecities with an indexed median, Kingsport ranks #17from highest to lowest. Across all 323 state ZIP profiles, available estimates run from 4.5to 247 PPM.

The 176.5–176.5 PPM range shows how much the available ZIP estimates vary within the city label. 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
Hard4 ZIPs
Very hard0 ZIPs

4 of 4 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
25 miles
Profiles with evidence
4/4

Confidence labels

High: 0Moderate: 2Low: 2

Observation window: Aug 30, 2016 to Aug 31, 2016.

ZIP directory

Water reports in Kingsport

Open a ZIP for site-level provenance and measurements.

ZIP code

37660

Hard

176.5 PPM

Nearest site
24.8 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

37663

Hard

176.5 PPM

Nearest site
27.8 mi
Confidence
Low

View full ZIP evidence →

ZIP code

37664

Hard

176.5 PPM

Nearest site
25 mi
Confidence
Low

View full ZIP evidence →

ZIP code

37665

Hard

176.5 PPM

Nearest site
21.5 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Kingsport Water Dept

PWSID TN0000349

Surface water
System population served
107,739
Last reported
May 14, 2026

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

Bloomingdale Utility District

PWSID TN0000056

Surface water
System population served
13,318
Last reported
May 14, 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.

RecordSystemPeriodStatus
Consumer Confidence RuleTN0000349Jul 1, 2023Unaddressed
Consumer Confidence RuleTN0000056Jul 1, 2023Resolved
FluorideTN0000056Jan 1, 2021Resolved
Public NoticeTN0000056Dec 1, 2010Addressed
Consumer Confidence RuleTN0000056Jul 1, 2009Addressed

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 Kingsport

Is the water hard?

The indexed city median is 177 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.