Water Hardness in Lakewood, CO
Colorado · 4 zip codes · 28 matched water systems
City avg (weighted): 90 PPM
Dataset updated March 9, 202628 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Lakewood, CO Water Hard or Soft?
The displayed hardness for Lakewood, CO is 90 PPM (5.3 GPG) from Arvada City Of, classified as slightly hard. The citywide weighted average is 90 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 28 matched water systems and 4 ZIP codes. 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 Lakewood
These systems are matched to Lakewood, CO. 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 |
|---|---|---|---|
| Arvada City Of CO0130001 | surface water | 90 PPM Slightly HardUSGS estimate: 156 PPM | |
| Consolidated Mutual Maple Grove CO0130020 | surface water | 90 PPM Slightly HardUSGS estimate: 156 PPM | |
| Green Mountain Wsd CO0130321 | surface water | 90 PPM Slightly HardUSGS estimate: 108 PPM | |
| Bancroft Clover Wsd CO0130133 | surface water | 90 PPM Slightly HardUSGS estimate: 156 PPM | |
| Golden City Of CO0130040 | surface water | 90 PPM Slightly HardUSGS estimate: 33 PPM |
Zip Codes in Lakewood, CO
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 Lakewood, CO.
Frequently Asked Questions
How hard is the water in Lakewood, CO?
The citywide weighted average water hardness in Lakewood, CO is 90 PPM (5.3 GPG), classified as slightly hard. This is based on 28 matched water systems.
Do I need a water softener in Lakewood, CO?
At 90 PPM, the citywide average is relatively soft. A water softener is generally not necessary.
Is hard water in Lakewood, CO 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 Lakewood, CO?
Lakewood, Colorado is served by 28 matched water systems across 4 zip codes.
Learn More About Your Water
How to Test Water Hardness at Home
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