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Water Hardness in Salem, OH

Ohio · 1 zip codes · 6 matched water systems

129 PPM
7.5 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20266 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 6 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
1 USGS-backed source
6 matched systems total for this city; 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 in Salem

These systems are matched to Salem, OH. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

6 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.
Salem City
OH1502011
Slightly Hard
111 PPMsurface water16,850 servedHigh Confidence — USGS Monitoring
East Liverpool City
OH1500811
Moderately Hard
145 PPMsurface water12,586 servedEstimated — Nearby Data
Buckeye Water District - Ohio River
OH1502911
Moderately Hard
145 PPMsurface water10,300 servedEstimated — Nearby Data
Colonial Villa Mhc, Llc
OH5000612
Soft
16 PPMgroundwater450 servedEstimated — Nearby Data
Deer Run Mc
OH1500112
Soft
16 PPMgroundwater106 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Salem, OH

What This Means For You

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

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Salem, OH.

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Frequently Asked Questions

How hard is the water in Salem, OH?

The citywide weighted average water hardness in Salem, OH is 129 PPM (7.5 GPG), classified as moderately hard. This is based on 6 matched water systems.

Do I need a water softener in Salem, OH?

With a citywide average hardness of 129 PPM, a water softener is worth considering for homes in Salem. Confirm your tap reading before sizing equipment.

Is hard water in Salem, OH 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 Salem, OH?

Salem, Ohio is served by 6 matched water systems across 1 zip code.

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