Where does the water in 14781 come from?

Water for zip code 14781 in Sherman, New York is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 14781

Sherman, New York · Chautauqua County

237 PPM

13.9 GPG

Hard

0Soft60120180300+

High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 4 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 4 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

4 USGS-backed sources

4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.

Water source profile

Primarily groundwater

Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 14781

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.

4 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
Jamestown Bpu NY0600366	groundwater	263 PPM Very Hard	46,712	High Confidence - USGS Monitoring
Dunkirk City NY0600360	surface water	197 PPM Hard	12,743	High Confidence - USGS Monitoring
Chautauqua Utility District NY0600381	surface water	166 PPM Moderately Hard	9,000	High Confidence - USGS Monitoring
Sherman Village NY0600373	groundwater	166 PPM Moderately Hard	677	High Confidence - USGS Monitoring

Jamestown Bpu

NY0600366

Very Hard

263 PPMgroundwater46,712 servedHigh Confidence - USGS Monitoring

Dunkirk City

NY0600360

Hard

197 PPMsurface water12,743 servedHigh Confidence - USGS Monitoring

Chautauqua Utility District

NY0600381

Moderately Hard

166 PPMsurface water9,000 servedHigh Confidence - USGS Monitoring

Sherman Village

NY0600373

Moderately Hard

166 PPMgroundwater677 servedHigh Confidence - USGS Monitoring

Nearby Zip Codes

14775246 14757233 14736238 14724237 14767238 14787234 14710238 16428120 14728238 14712238 16442120 14784238

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 Sherman, NY (14781).

Submit Your Data

Frequently Asked Questions

Is the water hard in Sherman, NY (14781)?

The average water hardness in 14781 is 237 PPM (13.9 GPG), which is classified as hard.

Do I need a water softener in 14781?

With hardness of 237 PPM, a water softener is recommended for homes in 14781.

Is hard water in 14781 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 14781?

Zip code 14781 in Sherman, New York is served by 4 water systems.