Is tap water safe in Vancouver?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Vancouver, WA?

Nearby USGS observations produce an estimate of 110 ppm (6.4 grains per gallon), classified as moderately hard. This is not a tap measurement.

Do I need a water softener in ZIP code 98660?

There is no high-hardness trigger in this profile. Confirm conditions with an at-home hardness test before purchasing equipment.

City water profile

Vancouver water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Vancouver, Washington.

Median indexed hardness

97PPM

7 indexed ZIPs

Range 97.2–110 PPM

State comparison: 7 PPM below
State hardness rank: #81 of 133
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Vancouver has 7 published ZIP profiles across Clark County. The indexed median is 97 PPM, compared with 104 PPM across Washington.

Among the 133 Washingtoncities with an indexed median, Vancouver ranks #81from highest to lowest. Across all 189 state ZIP profiles, available estimates run from 20.6to 238 PPM.

The 97.2–110 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 hard7 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

7 of 7 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 55.4 miles
Profiles with evidence: 7/7

Confidence labels

High: 0Moderate: 0Low: 7

Vancouver City Of

PWSID WA5391200

Groundwater

System population served: 373,047
Last reported: Jun 19, 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.

No violation records are included in the current lookback window.

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Washington communities

Camas

Clark County

97 PPM median

Washougal

Clark County

98 PPM median

North Bonneville

Skamania County

98 PPM median

Ferndale

Whatcom County

95 PPM median

Sumas

Whatcom County

95 PPM median

Dayton

Columbia County

95 PPM median

Search all 133 Washington cities →

Questions people ask

About water in Vancouver

Is the water hard?

The indexed city median is 97 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.