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Water Hardness in 68305

Auburn, Nebraska · Nemaha County

320 PPM
18.7 GPG
Very Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 4 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.

Source basis
3 USGS-backed sources
4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

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 68305

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.

4 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Auburn, City Of
NE3112703
Very Hard
290 PPMsurface water3,478 servedHigh Confidence — USGS Monitoring
Nemaha Co Rwd #2
NE3112707
Very Hard
436 PPMgroundwater1,011 servedEstimated — Nearby Data
Nemaha Co Rwd 1
NE3112701
Very Hard
299 PPMgroundwater600 servedHigh Confidence — USGS Monitoring
Nemaha, Village Of
NE3112706
Very Hard
299 PPMgroundwater122 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

683784366832011066832111066841414068442299684219906834843668376436684372996844811066449644868447436

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Salt-Based Water Softener
Our PickAFWFilters Fleck 5600SXT 48KAlso GreatWhirlpool WHES40E 40KAlso GreatAFWFilters 64K GrainAlso GreatAFWFilters Iron Pro 2 64KAlso GreatSpringWell Filter + Softener Combo
Water Hardness Test Kit
Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)
Whole-House Water Filter
Our PickiSpring WGB32B 3-Stage
Water Softener Salt
Our PickMorton Clean & ProtectAlso GreatDiamond Crystal Bright & Soft
Shower Head Filter
Our PickWeddell DuoAlso GreatAquaBliss SF100Also GreatSprite Pure 7-SettingAlso GreatAqua Earth 20-Stage

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 Auburn, NE (68305).

Submit Your Data

Frequently Asked Questions

Is the water hard in Auburn, NE (68305)?

The average water hardness in 68305 is 320 PPM (18.7 GPG), which is classified as very hard.

Do I need a water softener in 68305?

With hardness of 320 PPM, a water softener is recommended for homes in 68305.

Is hard water in 68305 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 68305?

Zip code 68305 in Auburn, Nebraska is served by 4 water systems.

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