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Water Hardness in Parker, SD

South Dakota · 1 zip codes · 3 matched water systems

250 PPM
14.6 GPG
Very Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 262 PPM

Dataset updated March 9, 20263 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Tm Rural Water District
SD4600999
Water source: surface water
Serves: 4,250
USGS environmental estimate: 839 PPM
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
1 verified treated-water source
3 matched systems total for this city; treated-water reports are prioritized when available.
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 Parker

These systems are matched to Parker, SD. 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.
By Water District
SD4600865
Hard
221 PPMsurface water13,320 servedEstimated — Nearby Data
Tm Rural Water District
SD4600999
Very Hard
250 PPMsurface water4,250 servedVerified — Annual Water Quality Report
Source water: 839 PPM
Parker
SD4600235
Very Hard
839 PPMgroundwater1,025 servedHigh Confidence — USGS Monitoring

Zip Codes in Parker, SD

What This Means For You

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

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | 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 Parker, SD.

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Frequently Asked Questions

How hard is the water in Parker, SD?

The citywide weighted average water hardness in Parker, SD is 262 PPM (15.3 GPG), classified as very hard. This is based on 3 matched water systems. The gauge highlights Tm Rural Water District, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Parker, SD?

With a citywide average hardness of 262 PPM, a water softener is recommended for homes in Parker. Confirm your tap reading before sizing equipment.

Is hard water in Parker, SD 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 Parker, SD?

Parker, South Dakota is served by 3 matched water systems across 1 zip code.

Learn More About Your Water