Water Hardness in 33620
Tampa, Florida · Hillsborough County
Dataset updated March 9, 2026Matched to 16 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 16 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 33620
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 |
|---|---|---|---|
City Of Tampa Water Department FL6290327 | surface water | 195 PPM HardUSGS estimate: 147 PPM | |
Hcwrd/South-Central FL6290787 | surface water | 195 PPM HardUSGS estimate: 147 PPM | |
Hcwrc/Northwest Utilities FL6290388 | surface water | 195 PPM HardUSGS estimate: 147 PPM | |
University Of South Florida FL6291882 | groundwater | 195 PPM HardUSGS estimate: 223 PPM | |
City Of Plant City Utility FL6290323 | groundwater | 195 PPM HardUSGS estimate: 214 PPM |
Nearby Zip Codes
What This Means For You
Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Hard Water - Treatment Recommended
Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.
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 Tampa, FL (33620).
Frequently Asked Questions
Is the water hard in Tampa, FL (33620)?
The average water hardness in 33620 is 195 PPM (11.4 GPG), which is classified as hard.
Do I need a water softener in 33620?
With hardness of 195 PPM, a water softener is recommended for homes in 33620.
Is hard water in 33620 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 33620?
Zip code 33620 in Tampa, Florida is served by 16 water systems.
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