Water Hardness in 13045
Cortland, New York · Cortland County
Dataset updated March 9, 2026Matched to 7 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 7 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 13045
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 |
|---|---|---|---|
| Cortland (C) NY1101754 | groundwater | 174 PPM Moderately Hard | |
| Willow Wood Apartments NY3316126 | groundwater | 174 PPM Moderately Hard | |
| Apple Ridge Apartments West NY3322466 | groundwater | 174 PPM Moderately Hard | |
| Apple Ridge Apartments East NY3321981 | groundwater | 174 PPM Moderately Hard | |
| Creekside Mobile Home Park NY5321680 | groundwater | 174 PPM Moderately 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 Cortland, NY (13045).
Frequently Asked Questions
Is the water hard in Cortland, NY (13045)?
The average water hardness in 13045 is 174 PPM (10.1 GPG), which is classified as moderately hard.
Do I need a water softener in 13045?
With hardness of 174 PPM, a water softener is worth considering for homes in 13045.
Is hard water in 13045 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 13045?
Zip code 13045 in Cortland, New York is served by 7 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 readHard Water vs Soft Water: Key Differences
Compare hard water and soft water by minerals, taste, soap lather, skin, hair, plumbing, and treatment needs.
10 min readPPM to GPG Converter + Water Hardness Scale Explained
Convert between PPM and GPG instantly. Understand the USGS water hardness scale and what your numbers mean for your home.
5 min read