Skip to content

City water profile

Austin water quality

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

Median indexed hardness

86PPM

39 indexed ZIPs

Range 83.8–162.5 PPM

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

City summary

What the indexed records say

Austin has 39 published ZIP profiles across Travis County. The indexed median is 86 PPM, compared with 111 PPM across Texas.

Among the 523 Texascities with an indexed median, Austin ranks #406from highest to lowest. Across all 1,026 state ZIP profiles, available estimates run from 5.4to 500.5 PPM.

The 83.8–162.5 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard29 ZIPs
Hard10 ZIPs
Very hard0 ZIPs

39 of 39 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
7.7 miles
Profiles with evidence
39/39

Confidence labels

High: 0Moderate: 39Low: 0

Observation window: Jun 2, 2016 to Jun 20, 2026.

ZIP directory

Water reports in Austin

Open a ZIP for site-level provenance and measurements.

ZIP code

78617

Moderately Hard

83.8 PPM

Nearest site
15.2 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78652

Hard

162.5 PPM

Nearest site
5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78701

Moderately Hard

86.3 PPM

Nearest site
6.1 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78702

Moderately Hard

83.8 PPM

Nearest site
7.8 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78703

Moderately Hard

86.3 PPM

Nearest site
4.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78704

Moderately Hard

86.3 PPM

Nearest site
4.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78705

Moderately Hard

83.8 PPM

Nearest site
6.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78712

Moderately Hard

83.8 PPM

Nearest site
6.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78719

Hard

122.9 PPM

Nearest site
11.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78721

Moderately Hard

83.8 PPM

Nearest site
9.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78722

Moderately Hard

83.8 PPM

Nearest site
7.8 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78723

Moderately Hard

83.8 PPM

Nearest site
9.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78724

Moderately Hard

86.3 PPM

Nearest site
13.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78726

Moderately Hard

83.8 PPM

Nearest site
10.8 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78727

Moderately Hard

86.3 PPM

Nearest site
13.1 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78728

Hard

160 PPM

Nearest site
15.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78730

Moderately Hard

86.3 PPM

Nearest site
6.2 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78731

Moderately Hard

83.8 PPM

Nearest site
6.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78733

Moderately Hard

104.4 PPM

Nearest site
4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78735

Moderately Hard

120 PPM

Nearest site
1.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78736

Hard

162.5 PPM

Nearest site
3.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78739

Hard

162.5 PPM

Nearest site
2.4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78741

Moderately Hard

86.3 PPM

Nearest site
7.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78742

Moderately Hard

83.8 PPM

Nearest site
10.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78744

Hard

122.9 PPM

Nearest site
7.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78745

Hard

158.5 PPM

Nearest site
2.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78746

Moderately Hard

86.3 PPM

Nearest site
2.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78747

Hard

160 PPM

Nearest site
9.2 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78748

Hard

160 PPM

Nearest site
4.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78749

Hard

159.5 PPM

Nearest site
1.1 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78750

Moderately Hard

86.3 PPM

Nearest site
12 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78751

Moderately Hard

83.8 PPM

Nearest site
7.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78752

Moderately Hard

83.8 PPM

Nearest site
9.3 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78753

Moderately Hard

86.3 PPM

Nearest site
12.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78754

Moderately Hard

86.3 PPM

Nearest site
13.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78756

Moderately Hard

83.8 PPM

Nearest site
7.1 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78757

Moderately Hard

83.8 PPM

Nearest site
8.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78758

Moderately Hard

86.3 PPM

Nearest site
11.4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

78759

Moderately Hard

86.3 PPM

Nearest site
10.2 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

City Of Austin Water & Wastewater

PWSID TX2270001

Surface water
System population served
1,115,323
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
Interim Enhanced Surface Water Treatment RuleTX2270001Feb 1, 2022Resolved · health-based

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 Austin

Is the water hard?

The indexed city median is 86 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.