Water Hardness in 33617
Tampa, Florida · Hillsborough County
Dataset updated March 9, 2026Matched to 17 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 17 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 33617
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
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 Tampa, FL (33617).
Frequently Asked Questions
Is the water hard in Tampa, FL (33617)?
The average water hardness in 33617 is 195 PPM (11.4 GPG), which is classified as hard.
Do I need a water softener in 33617?
With hardness of 195 PPM, a water softener is recommended for homes in 33617.
Is hard water in 33617 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 33617?
Zip code 33617 in Tampa, Florida is served by 17 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.
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.
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