Where does the water in 62341 come from?

Water for zip code 62341 in Hamilton, Illinois is provided by 2 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 62341

Q: Is the water hard in Hamilton, IL (62341)?

The average water hardness in 62341 is 317 PPM (18.5 GPG), which is classified as very hard. A water softener is strongly recommended. Very hard water can significantly reduce appliance lifespan.

Q: Do I need a water softener in 62341?

With hardness of 317 PPM, a water softener is recommended for homes in 62341. Hard water can cause scale buildup in pipes and appliances, spotty dishes, and dry skin.

Hamilton, Illinois · Hancock County

317 PPM

18.5 GPG

Very Hard

0Soft60120180300+

Estimated — Nearby Data

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

2 estimated sources

This ZIP reading needs local confirmation before equipment sizing or purchase decisions.

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 62341

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.

Water System	Source	Hardness	Pop. Served	Data Source
Dallas Rural Water District IL0710010	groundwater	362 PPM Very Hard	6,370	Estimated — Nearby Data
Hamilton IL0670400	surface water	213 PPM Hard	2,753	Estimated — Nearby Data

Dallas Rural Water District

IL0710010

Very Hard

362 PPMgroundwater6,370 servedEstimated — Nearby Data

Hamilton

IL0670400

Hard

213 PPMsurface water2,753 servedEstimated — Nearby Data

Nearby Zip Codes

62334213 62354213 62336296 52632271 62313296 62358296 62321362 52639308 63430152 62379213 62330272 62373362

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 48K Also GreatWhirlpool WHES40E 40K Also GreatAFWFilters 64K Grain Also GreatAFWFilters Iron Pro 2 64K Also 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 & Protect Also GreatDiamond Crystal Bright & Soft

Shower Head Filter

Our PickWeddell Duo Also GreatAquaBliss SF100 Also GreatSprite Pure 7-Setting Also 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 Hamilton, IL (62341).

Submit Your Data

Frequently Asked Questions

Is the water hard in Hamilton, IL (62341)?

Our estimate for 62341 is 317 PPM (18.5 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 62341?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 62341 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 62341?

Zip code 62341 in Hamilton, Illinois is served by 2 water systems.