Where does the water in 03864 come from?

Water for zip code 03864 in Ossipee, New Hampshire 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 03864

Q: Is the water hard in Ossipee, NH (03864)?

The average water hardness in 03864 is 23 PPM (1.3 GPG), which is classified as soft. No water treatment is typically needed.

Q: Do I need a water softener in 03864?

At 23 PPM, your water is relatively soft. A water softener is generally not necessary, though some homeowners prefer the feel of softened water.

Ossipee, New Hampshire · Carroll County

23 PPM

1.3 GPG

Soft

0Soft60120180300+

Estimated — Nearby Data

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 estimated sources

This ZIP reading needs local confirmation before equipment sizing or purchase decisions.

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 03864

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
Ossipee Water Dept NH1841010	groundwater	16 PPM Soft	860	Estimated — Nearby Data
Carroll County Complex NH1844010	groundwater	35 PPM Soft	258	Estimated — Nearby Data
Sandy Ridge Estates NH1843020	groundwater	35 PPM Soft	125	Estimated — Nearby Data
Poland Brook Woods NH1842050	groundwater	35 PPM Soft	45	Estimated — Nearby Data

Ossipee Water Dept

NH1841010

Soft

16 PPMgroundwater860 servedEstimated — Nearby Data

Carroll County Complex

NH1844010

Soft

35 PPMgroundwater258 servedEstimated — Nearby Data

Sandy Ridge Estates

NH1843020

Soft

35 PPMgroundwater125 servedEstimated — Nearby Data

Poland Brook Woods

NH1842050

Soft

35 PPMgroundwater45 servedEstimated — Nearby Data

Nearby Zip Codes

0388225 0389420 0381416 0381620 0383035 0387235 0383619 0385325 0409548 0404748 0406838 0400148

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 Ossipee, NH (03864).

Submit Your Data

Frequently Asked Questions

Is the water hard in Ossipee, NH (03864)?

Our estimate for 03864 is 23 PPM (1.3 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 03864?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 03864 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 03864?

Zip code 03864 in Ossipee, New Hampshire is served by 4 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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