Water Hardness in 20751
Deale, Maryland · Anne Arundel County
Dataset updated March 9, 2026Matched to 6 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 6 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.
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 20751
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.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| Glen Burnie-Broadneck MD0020017 | groundwater | 85 PPM Slightly HardUSGS estimate: 156 PPM | |
| Crofton-Odenton MD0020008 | groundwater | 85 PPM Slightly HardUSGS estimate: 156 PPM | |
| Fort George G. Meade MD0020012 | groundwater | 85 PPM Slightly HardUSGS estimate: 13 PPM | |
| City Of Annapolis MD0020001 | groundwater | 85 PPM Slightly HardUSGS estimate: 156 PPM | |
| Broad Creek MD0020004 | groundwater | 85 PPM Slightly HardUSGS estimate: 156 PPM |
Nearby Zip Codes
What This Means For You
Use this ZIP 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 Deale, MD (20751).
Frequently Asked Questions
Is the water hard in Deale, MD (20751)?
The average water hardness in 20751 is 85 PPM (5 GPG), which is classified as slightly hard.
Do I need a water softener in 20751?
At 85 PPM, your water is relatively soft. A water softener is generally not necessary.
Is hard water in 20751 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 20751?
Zip code 20751 in Deale, Maryland is served by 6 water systems.
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.
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