Where does the water in 61814 come from?

Water for zip code 61814 in Bismarck, 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 61814

Bismarck, Illinois · Vermilion County

223 PPM

13 GPG

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 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 61814

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
Aqua Illinois-Vermilion County IL1835120	surface water	206 PPM Hard	30,106	High Confidence - USGS Monitoring
Bismarck Community Water District IL1835250	groundwater	779 PPM Very Hard	900	Estimated - Nearby Data

Aqua Illinois-Vermilion County

IL1835120

Hard

206 PPMsurface water30,106 servedHigh Confidence - USGS Monitoring

Bismarck Community Water District

IL1835250

Very Hard

779 PPMgroundwater900 servedEstimated - Nearby Data

Nearby Zip Codes

47982280 61811211 47991444 61832206 61834206 61848206 47993444 61833206 60963230 47932444 61831206 61858241

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Methodology Data sources 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 Bismarck, IL (61814).

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Frequently Asked Questions

Is the water hard in Bismarck, IL (61814)?

The average water hardness in 61814 is 223 PPM (13 GPG), which is classified as hard.

Do I need a water softener in 61814?

With hardness of 223 PPM, a water softener is recommended for homes in 61814.

Is hard water in 61814 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 61814?

Zip code 61814 in Bismarck, Illinois is served by 2 water systems.