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City water profile

Nacogdoches water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Nacogdoches, Texas.

Median indexed hardness

47PPM

4 indexed ZIPs

Range 45.3–47.1 PPM

State comparison
64 PPM below
State hardness rank
#478 of 523
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Nacogdoches has 4 published ZIP profiles across Nacogdoches County. The indexed median is 47 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Nacogdoches ranks #478from highest to lowest. Across all 1,026 state ZIP profiles, available estimates run from 5.4to 500.5 PPM.

The 45.3–47.1 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

Soft4 ZIPs
Moderately hard0 ZIPs
Hard0 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
32.3 miles
Profiles with evidence
4/4

Confidence labels

High: 0Moderate: 1Low: 3

Observation window: Jan 28, 2016 to Jun 3, 2026.

ZIP directory

Water reports in Nacogdoches

Open a ZIP for site-level provenance and measurements.

ZIP code

75961

Soft

46.9 PPM

Nearest site
32.3 mi
Confidence
Low

View full ZIP evidence →

ZIP code

75962

Soft

47.1 PPM

Nearest site
30.6 mi
Confidence
Low

View full ZIP evidence →

ZIP code

75964

Soft

47.1 PPM

Nearest site
34 mi
Confidence
Low

View full ZIP evidence →

ZIP code

75965

Soft

45.3 PPM

Nearest site
23.4 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Nacogdoches

PWSID TX1740003

Surface water
System population served
50,226
Last reported
Jun 26, 2026

A municipal system, in-state city, and served county all agree with this Census 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
LEAD AND COPPER RULE REVISIONSTX1740003Jul 2, 2025Resolved
Revised Total Coliform RuleTX1740003Feb 1, 2025Resolved
Public NoticeTX1740003Jun 1, 2024Resolved
Revised Total Coliform RuleTX1740003Nov 1, 2023Resolved
Revised Total Coliform RuleTX1740003Jul 1, 2023Resolved
Revised Total Coliform RuleTX1740003May 1, 2023Resolved
Public NoticeTX1740003Dec 1, 2022Resolved
Revised Total Coliform RuleTX1740003Nov 1, 2021Resolved

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 Nacogdoches

Is the water hard?

The indexed city median is 47 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.