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Water Hardness in Oakland City, IN

Indiana · 1 zip codes · 3 matched water systems

206 PPM
12 GPG
Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 20263 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 3 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
3 estimated sources
This city reading needs local confirmation before equipment sizing or purchase decisions.
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 Oakland City

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

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.
Princeton Water Department
IN5226008
Hard
237 PPMgroundwater10,875 servedEstimated — Nearby Data
Pike-Gibson Water, Inc.
IN5263003
Moderately Hard
179 PPMsurface water10,000 servedEstimated — Nearby Data
Oakland City Water Department
IN5226005
Moderately Hard
179 PPMsurface water2,938 servedEstimated — Nearby Data

Zip Codes in Oakland City, IN

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 Oakland City, IN.

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Frequently Asked Questions

How hard is the water in Oakland City, IN?

The citywide weighted average water hardness in Oakland City, IN is 206 PPM (12 GPG), classified as hard. This is based on 3 matched water systems.

Do I need a water softener in Oakland City, IN?

With a citywide average hardness of 206 PPM, a water softener is recommended for homes in Oakland City. Confirm your tap reading before sizing equipment.

Is hard water in Oakland City, IN 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 Oakland City, IN?

Oakland City, Indiana is served by 3 matched water systems across 1 zip code.

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