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Water Hardness in 29621

Anderson, South Carolina · Anderson County

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

Dataset updated March 9, 2026Matched to 11 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 11 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
11 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 29621

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.

11 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.
Electric City Utilities (Sc0410012)
SC0410012
Soft
11 PPMsurface water38,204 servedEstimated — Nearby Data
Powdersville Water District (Sc0420002)
SC0420002
Soft
11 PPMsurface water34,960 servedEstimated — Nearby Data
Hammond W/D (Sc0420007)
SC0420007
Soft
16 PPMsurface water21,193 servedEstimated — Nearby Data
West Anderson W/D (0420006)
SC0420006
Soft
11 PPMsurface water17,430 servedEstimated — Nearby Data
Sandy Springs Water Co Inc (Sc0420003)
SC0420003
Soft
4 PPMsurface water17,311 servedEstimated — County Avg
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

296241129627112962611296971129625112968411296701129654112966911296891129631102965511

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 Anderson, SC (29621).

Submit Your Data

Frequently Asked Questions

Is the water hard in Anderson, SC (29621)?

The average water hardness in 29621 is 11 PPM (0.6 GPG), which is classified as soft.

Do I need a water softener in 29621?

At 11 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 29621 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 29621?

Zip code 29621 in Anderson, South Carolina is served by 11 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