Where does the water in 99801 come from?

Water for zip code 99801 in Juneau, Alaska is provided by 2 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 99801

Juneau, Alaska · Juneau Borough County

10 PPM

0.6 GPG

Soft

0Soft60120180300+

Verified - Annual Water Quality Report

Dataset updated March 9, 2026Matched to 2 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 2 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis

2 verified treated-water sources

2 matched systems total for this ZIP; treated-water reports are prioritized when available.

Water source profile

Primarily surface water

Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.

Data recency

March 9, 2026

Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems Serving 99801

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

2 water systems

PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.

Water System	Source	Hardness	Pop. Served	Data Source
City And Borough Of Juneau AK2110342	surface water	10 PPM Soft USGS estimate: 61 PPM	38,526	Verified - Annual Water Quality Report
Churchill Park AK2110318	groundwater	10 PPM Soft USGS estimate: 61 PPM	250	Verified - Annual Water Quality Report

City And Borough Of Juneau

AK2110342

Soft

10 PPMsurface water38,526 servedVerified - Annual Water Quality Report

Source water: 61 PPM

Churchill Park

AK2110318

Soft

10 PPMgroundwater250 servedVerified - Annual Water Quality Report

Source water: 61 PPM

Nearby Zip Codes

9982410

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Methodology Data sources How to test your water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Juneau, AK (99801).

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Frequently Asked Questions

Is the water hard in Juneau, AK (99801)?

The average water hardness in 99801 is 10 PPM (0.6 GPG), which is classified as soft.

Do I need a water softener in 99801?

At 10 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 99801 safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve 99801?

Zip code 99801 in Juneau, Alaska is served by 2 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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