Where does the water in 60538 come from?

Water for zip code 60538 in Montgomery, Illinois is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 60538

Montgomery, Illinois · Kendall County

228 PPM

13.3 GPG

Hard

0Soft60120180300+

Verified — Annual Water Quality Report

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

1 verified treated-water source

4 matched systems total for this ZIP; treated-water reports are prioritized when available.

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 60538

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.

Water System	Source	Hardness	Pop. Served	Data Source
Oswego IL0930150	groundwater	236 PPM Hard	38,169	High Confidence — USGS Monitoring
Montgomery IL0894690	groundwater	148 PPM Moderately Hard USGS estimate: 236 PPM	28,956	Verified — Annual Water Quality Report
Yorkville IL0930250	groundwater	284 PPM Very Hard	23,000	Estimated — Nearby Data
Plano IL0930200	groundwater	284 PPM Very Hard	12,600	High Confidence — USGS Monitoring

Oswego

IL0930150

Hard

236 PPMgroundwater38,169 servedHigh Confidence — USGS Monitoring

Montgomery

IL0894690

Moderately Hard

148 PPMgroundwater28,956 servedVerified — Annual Water Quality Report

Source water: 236 PPM

Yorkville

IL0930250

Very Hard

284 PPMgroundwater23,000 servedEstimated — Nearby Data

Plano

IL0930200

Very Hard

284 PPMgroundwater12,600 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

60506148 60505148 60543259 60504148 60542148 60512259 60519148 60539148 60554148 60564148 60510148 60563148

What This Means For You

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

Hard Water - Treatment Recommended

Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.

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

Salt-Free Water Conditioner

Our PickSpringWell Salt-Free Cartridge

Water Hardness Test Kit

Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)

Shower Head Filter

Our PickWeddell Duo Also GreatAquaBliss SF100 Also GreatSprite Pure 7-Setting Also GreatAqua Earth 20-Stage

Water Softener Salt

Our PickMorton Clean & Protect Also GreatDiamond Crystal Bright & Soft

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 Montgomery, IL (60538).

Submit Your Data

Frequently Asked Questions

Is the water hard in Montgomery, IL (60538)?

The average water hardness in 60538 is 228 PPM (13.3 GPG), which is classified as hard.

Do I need a water softener in 60538?

With hardness of 228 PPM, a water softener is recommended for homes in 60538.

Is hard water in 60538 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 60538?

Zip code 60538 in Montgomery, Illinois is served by 4 water systems.