Water Hardness in Oak Park Heights, MN
Minnesota · 1 zip codes · 15 matched water systems
City avg (weighted): 254 PPM
Dataset updated March 9, 202615 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Oak Park Heights, MN Water Hard or Soft?
The displayed hardness for Oak Park Heights, MN is 256 PPM (15 GPG) from Woodbury, classified as very hard. The citywide weighted average is 254 PPM.
Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.
How this city reading is built
This city reading is a weighted rollup across 15 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.
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 Oak Park Heights
These systems are matched to Oak Park Heights, MN. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| Woodbury MN1820025 | groundwater | 256 PPM Very HardUSGS estimate: 260 PPM | |
| Cottage Grove MN1820004 | groundwater | 256 PPM Very HardUSGS estimate: 275 PPM | |
| Oakdale MN1820016 | groundwater | 256 PPM Very HardUSGS estimate: 260 PPM | |
| Stillwater MN1820024 | groundwater | 256 PPM Very HardUSGS estimate: 187 PPM | |
| Hugo MN1820007 | groundwater | 256 PPM Very HardUSGS estimate: 260 PPM |
Zip Codes in Oak Park Heights, MN
What This Means For You
Use this city 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.
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 Oak Park Heights, MN.
Frequently Asked Questions
How hard is the water in Oak Park Heights, MN?
The citywide weighted average water hardness in Oak Park Heights, MN is 254 PPM (14.8 GPG), classified as very hard. This is based on 15 matched water systems. The gauge highlights Woodbury, a verified treated-water system, because individual systems can differ from the citywide average.
Do I need a water softener in Oak Park Heights, MN?
With a citywide average hardness of 254 PPM, a water softener is recommended for homes in Oak Park Heights. Confirm your tap reading before sizing equipment.
Is hard water in Oak Park Heights, MN 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 Oak Park Heights, MN?
Oak Park Heights, Minnesota is served by 15 matched water systems across 1 zip code.
Learn More About Your Water
How to Test Water Hardness at Home
Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.
8 min readWater 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.
10 min readWell Water Hardness: Why It's Usually Hard & How to Treat It
Well water is almost always harder than city water. Learn why, how to test your well, and the best treatment options for hard well water.
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