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Water Hardness in 61554

Pekin, Illinois · Tazewell County

186 PPM
10.9 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 8 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 8 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
4 verified treated-water sources
8 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 61554

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.

8 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.
Il American-Pekin
IL1795040
Moderately Hard
170 PPMgroundwater31,731 servedVerified — Annual Water Quality Report
Source water: 207 PPM
East Peoria
IL1790200
Moderately Hard
170 PPMgroundwater22,284 servedVerified — Annual Water Quality Report
Source water: 600 PPM
Morton
IL1790500
Moderately Hard
170 PPMgroundwater17,111 servedVerified — Annual Water Quality Report
Source water: 321 PPM
Washington
IL1790750
Moderately Hard
170 PPMgroundwater14,793 servedVerified — Annual Water Quality Report
Source water: 321 PPM
Marquette Heights
IL1790400
Very Hard
397 PPMgroundwater2,974 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

615641736154717061535176616071706161017061539170615681746153417261605170616021706160617061550170

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 48KAlso GreatWhirlpool WHES40E 40KAlso GreatAFWFilters 64K GrainAlso GreatAFWFilters Iron Pro 2 64KAlso 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 DuoAlso GreatAquaBliss SF100Also GreatSprite Pure 7-SettingAlso GreatAqua Earth 20-Stage
Water Softener Salt
Our PickMorton Clean & ProtectAlso 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 Pekin, IL (61554).

Submit Your Data

Frequently Asked Questions

Is the water hard in Pekin, IL (61554)?

The average water hardness in 61554 is 186 PPM (10.9 GPG), which is classified as hard.

Do I need a water softener in 61554?

With hardness of 186 PPM, a water softener is recommended for homes in 61554.

Is hard water in 61554 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 61554?

Zip code 61554 in Pekin, Illinois is served by 8 water systems.

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