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10 counties across North Texas.

Every ZIP in our hardness lookup falls inside these ten counties — a full ring around Dallas and Fort Worth. Here's everywhere we serve, and what actually makes each area's water different.

Map of the Dallas-Fort Worth service area covered by Water Cowboys, spanning Denton, Fort Worth, Dallas, Plano, Arlington, and surrounding cities
10
Counties
113
Cities served
241
ZIPs in our hardness lookup
Dallas CountyTarrant CountyCollin CountyDenton CountyEllis CountyKaufman CountyRockwall CountyJohnson CountyParker CountyWise County

Dallas County

12gpg avgVery Hard
Dallas Water Utilities

The urban core of the metroplex — Dallas Water Utilities supplies most of it, along with several surrounding cities that buy treated water from the same system. Water runs hard county-wide, and older neighborhoods with original plumbing tend to show scale damage faster than newer construction. See the Dallas page →

Addison
Balch Springs
Duncanville
Farmers Branch
Glenn Heights
Hutchins
Lancaster
Sachse
Seagoville
Sunnyvale
Wilmer

Tarrant County

11gpg avgVery Hard
Fort Worth Water

Fort Worth Water supplies most of the county, with a Trinity River Authority blend across several Mid-Cities suburbs. Arlington runs its own separate system, drawing from four reservoirs including Lake Arlington itself — and reads even harder than Fort Worth. This is one of the more consistently hard-water counties in our service area — scale on fixtures is the norm here, not the exception. See the Fort Worth page → · See the Arlington page →

Benbrook
Edgecliff Village
Everman
Forest Hill
Haltom City
Haslet
Kennedale
River Oaks
Saginaw
Watauga
White Settlement

Collin County

15gpg avgVery Hard
North Texas Municipal Water District

Plano, Frisco, Allen, McKinney and the rest of Collin County draw from the North Texas Municipal Water District. Lots of newer construction here, which surprises people — a five-year-old house scales up just as fast as an older one if the water coming in is hard.

Anna
Blue Ridge
Celina
Farmersville
Josephine
Lavon
Melissa
Murphy
Nevada
Princeton
Wylie

Denton County

16gpg avgVery Hard
City of Denton + Upper Trinity Regional Water District

A mix of the City of Denton's own system and the Upper Trinity Regional Water District across the rest of the county. Denton is also where we see the most private wells in our service area alongside city water, so the right system depends genuinely on which one you're on.

Argyle
Aubrey
Hickory Creek
Justin
Krum
Lake Dallas
Little Elm
Pilot Point
Ponder
Prosper
Providence Village
Roanoke
Sanger
The Colony
Trophy Club

Ellis County

13gpg avgVery Hard
mixed municipal supply

South of Dallas — Waxahachie, Ennis, Red Oak and the surrounding area. A genuine mix of treated municipal supply in town and private wells once you're out past the city limits, which changes what system actually makes sense.

Ennis
Ferris
Midlothian
Palmer
Red Oak
Venus

Kaufman County

14gpg avgVery Hard
mixed municipal supply

East of Dallas — Kaufman, Terrell, Forney and the fast-growing Heartland area. Newer subdivisions on municipal supply, with older properties further out still commonly on private wells.

Crandall
Forney
Heartland
Kaufman
Terrell

Rockwall County

15gpg avgVery Hard
North Texas Municipal Water District

The smallest county in Texas by area, and one of the fastest-growing. Almost everything here runs on North Texas Municipal Water District supply, and the housing stock is new enough that owners are often surprised how quickly scale shows up anyway.

Fate
Heath
Rockwall
Royse City

Johnson County

12gpg avgVery Hard
mixed municipal and well

South of Fort Worth — Cleburne, Burleson, Joshua and Godley. Well water is common outside the town centers, and this is where we see more iron and sulfur treatment needs than anywhere else in our service area.

Alvarado
Cleburne
Crowley
Godley
Joshua
Keene

Parker County

12gpg avgVery Hard
mixed municipal and well

West of Fort Worth — Weatherford, Aledo, Willow Park and Springtown. Genuine well-water territory: big lots, private wells, and hardness readings that regularly come back higher than anything on the city side of the county line.

Aledo
Cool
Hudson Oaks
Millsap
Reno
Springtown
Willow Park

Wise County

13gpg avgVery Hard
mixed municipal and well

Northwest of Fort Worth — Decatur, Bridgeport, Rhome and Newark. Predominantly rural, predominantly well water, and the part of our service area where a hardness reading most often changes what we'd actually recommend.

Azle
Briar
Bridgeport
Decatur
Newark
Rhome

Not sure if you're in range?

If you're just outside one of these counties, call — we likely still cover it. Or check your exact ZIP's real hardness reading right now.