WH

Water Hardness in 37737

Friendsville, Tennessee · Blount County

10 PPM
0.6 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 5 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 5 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
1 USGS-backed source
5 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
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 37737

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.

5 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.
South Blount Utility District
TN0000643
Soft
10 PPMsurface water53,864 servedEstimated — Nearby Data
City Of Maryville W&S Dept
TN0000438
Soft
10 PPMsurface water49,135 servedEstimated — Nearby Data
Alcoa Water System
TN0000007
Soft
10 PPMsurface water35,238 servedEstimated — Nearby Data
Tuckaleechee Utility District
TN0000714
Soft
4 PPMsurface water14,522 servedHigh Confidence — USGS Monitoring
Friendsville Water Works
TN0000249
Soft
10 PPMsurface water5,437 servedEstimated — Nearby Data

Nearby Zip Codes

377721493777710378011037742149379225037701103780310379325037923503777114937804103785310

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Friendsville, TN (37737).

Submit Your Data

Frequently Asked Questions

Is the water hard in Friendsville, TN (37737)?

The average water hardness in 37737 is 10 PPM (0.6 GPG), which is classified as soft.

Do I need a water softener in 37737?

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

Is hard water in 37737 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 37737?

Zip code 37737 in Friendsville, Tennessee is served by 5 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.

10 min read

How to Test Water Hardness at Home

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

8 min read