WH

Water Hardness in 45742

Little Hocking, Ohio · Washington County

275 PPM
16.1 GPG
Very Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 2 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 2 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
1 USGS-backed source
2 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 45742

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.

2 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.
Marietta City Pws
OH8400412
Very Hard
279 PPMgroundwater18,707 servedHigh Confidence — USGS Monitoring
Little Hocking Water Association, Inc.
OH8400212
Very Hard
267 PPMgroundwater9,892 servedEstimated — Nearby Data

Nearby Zip Codes

261811944572321845714279457842794572427926101184457782184573521845772247457292792610519426133194

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 Little Hocking, OH (45742).

Submit Your Data

Frequently Asked Questions

Is the water hard in Little Hocking, OH (45742)?

The average water hardness in 45742 is 275 PPM (16.1 GPG), which is classified as very hard.

Do I need a water softener in 45742?

With hardness of 275 PPM, a water softener is recommended for homes in 45742.

Is hard water in 45742 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 45742?

Zip code 45742 in Little Hocking, Ohio is served by 2 water systems.

Learn More About Your Water

Best Water Softeners 2026: Top Picks for Every Budget

We compared salt-based, salt-free, and portable water softeners. Here are our top picks based on water hardness level, home size, and budget.

12 min read

Water Softener Size Calculator: What Grain Capacity Do You Need?

Calculate the right water softener size for your home. Enter your household size and water hardness to get a grain capacity recommendation.

7 min read

Hard Water and Hair: Effects, Damage Signs & What Actually Helps

How mineral buildup affects your hair - and what to do about it based on your actual water hardness level.

10 min read