Skip to content

City water profile

Klamath Falls water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Klamath Falls, Oregon.

Median indexed hardness

51PPM

One indexed ZIP

Range 50.6–50.6 PPM

State comparison
22 PPM above
State hardness rank
#4 of 21
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Klamath Falls has 1 published ZIP profile across Klamath County. The indexed median is 51 PPM, compared with 29 PPM across Oregon.

Among the 21 Oregoncities with an indexed median, Klamath Falls ranks #4from highest to lowest. Across all 56 state ZIP profiles, available estimates run from 15.7to 78.9 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.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

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
10.7 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Sep 23, 2019 to Oct 18, 2024.

ZIP directory

Water reports in Klamath Falls

Open a ZIP for site-level provenance and measurements.

ZIP code

97601

Soft

50.6 PPM

Nearest site
10.7 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Klamath Falls Water Dept

PWSID OR4100443

Groundwater
System population served
40,475
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
Revised Total Coliform RuleOR4100443Feb 1, 2025Resolved
Consumer Confidence RuleOR4100443Oct 1, 2024Resolved
Revised Total Coliform RuleOR4100443Sep 1, 2024Resolved
Consumer Confidence RuleOR4100443Jul 1, 2023Resolved
BHC-GAMMAOR4100443Jan 1, 2023Resolved
MethoxychlorOR4100443Jan 1, 2023Resolved
ToxapheneOR4100443Jan 1, 2023Resolved
EndothallOR4100443Jan 1, 2023Resolved
OXAMYLOR4100443Jan 1, 2023Resolved
SimazineOR4100443Jan 1, 2023Resolved

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 Klamath Falls

Is the water hard?

The indexed city median is 51 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.