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Water Hardness in 71655

Monticello, Arkansas · Drew County

43 PPM
2.5 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 6 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 6 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
6 USGS-backed sources
6 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 71655

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.

6 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.
Monticello Water Department
AR0000184
Soft
43 PPMgroundwater8,442 servedHigh Confidence — USGS Monitoring
Selma Water Association
AR0000182
Soft
43 PPMgroundwater1,600 servedHigh Confidence — USGS Monitoring
Lacey-Ladelle Water Associatio
AR0000684
Soft
43 PPMgroundwater1,438 servedHigh Confidence — USGS Monitoring
Green Hill-Brooks Chapel Water
AR0000701
Soft
43 PPMgroundwater597 servedHigh Confidence — USGS Monitoring
Bowser Water Assn
AR0000179
Soft
43 PPMgroundwater564 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

71675107163818271677130716421617165437971670130716711071639130716671071658701716663797166071

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Monticello, AR (71655).

Submit Your Data

Frequently Asked Questions

Is the water hard in Monticello, AR (71655)?

The average water hardness in 71655 is 43 PPM (2.5 GPG), which is classified as soft.

Do I need a water softener in 71655?

At 43 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 71655 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 71655?

Zip code 71655 in Monticello, Arkansas is served by 6 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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