Where does the water in 72847 come from?

Water for zip code 72847 in London, Arkansas is provided by 3 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 72847

London, Arkansas · Pope County

10 PPM

0.6 GPG

Soft

0Soft60120180300+

High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 3 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 3 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

3 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 72847

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.

3 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 Corporation AR0000446	surface water	10 PPM Soft	29,260	Estimated — County Avg
Tri-County Water Distbr Dist AR0000782	surface water	10 PPM Soft	20,394	Estimated — County Avg
London Waterworks AR0000443	surface water	10 PPM Soft	1,363	High Confidence — USGS Monitoring

City Corporation

AR0000446

Soft

10 PPMsurface water29,260 servedEstimated — County Avg

Tri-County Water Distbr Dist

AR0000782

Soft

10 PPMsurface water20,394 servedEstimated — County Avg

London Waterworks

AR0000443

Soft

10 PPMsurface water1,363 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

7284510 7283530 728468 7280110 7280210 7285110 7286310 7283710 7283412 7286510 7285813 728308

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 London, AR (72847).

Submit Your Data

Frequently Asked Questions

Is the water hard in London, AR (72847)?

The average water hardness in 72847 is 10 PPM (0.6 GPG), which is classified as soft.

Do I need a water softener in 72847?

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

Is hard water in 72847 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 72847?

Zip code 72847 in London, Arkansas is served by 3 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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