Water Hardness in 84335
Smithfield, Utah · Cache 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 84335
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 |
|---|---|---|---|
| Logan City Water System UTAH03010 | groundwater | 200 PPM HardUSGS estimate: 231 PPM | |
| Smithfield City UTAH03020 | groundwater | 200 PPM HardUSGS estimate: 231 PPM | |
| Hyrum City UTAH03008 | groundwater | 200 PPM HardUSGS estimate: 231 PPM | |
| North Logan City UTAH03015 | surface water | 1370 PPM Very Hard | |
| Benson Culinary Improvement District UTAH03097 | groundwater | 231 PPM Hard |
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 Smithfield, UT (84335).
Frequently Asked Questions
Is the water hard in Smithfield, UT (84335)?
The average water hardness in 84335 is 317 PPM (18.5 GPG), which is classified as very hard.
Do I need a water softener in 84335?
With hardness of 317 PPM, a water softener is recommended for homes in 84335.
Is hard water in 84335 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 84335?
Zip code 84335 in Smithfield, Utah is served by 6 water systems.
Learn More About Your Water
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