Water Supply

Most of Collin County's Tap Water Comes from Lake Lavon

The North Texas Municipal Water District supplies treated water to most cities in Collin County, drawing heavily from Lake Lavon, which sits in the county.

Collin County Home & Property

The North Texas Municipal Water District (NTMWD) serves over 2.3 million people across a 2,200-square-mile region. Lake Lavon — right here in Collin County — was the first reservoir built by the U.S. Army Corps of Engineers for NTMWD, and it remains the district's largest water source. NTMWD also draws from Lake Texoma, Lake Tawakoni, Jim Chapman Lake, and Bois d'Arc Lake.

NTMWD operates seven water treatment plants and more than 695 miles of transmission pipelines. Member cities and customer utilities then distribute the treated water to residents. If you are in a city or a water supply district in Collin County, your water almost certainly passes through the NTMWD system. Learn more at ntmwd.com.

Source to confirm: NTMWD – Water System

More Collin County notes

Property Tax Relief

How the Homestead Exemption Lowers Your Property Tax Bill

If you own and live in your home in Collin County, you can apply for a homestead exemption that removes part of your home's value from the tax calculation.

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Property Tax Basics

Two Offices Handle Property Taxes in Collin County

Two separate offices deal with your property taxes. One sets your home's value. The other sends your bill and collects payment.

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Agricultural Appraisal

Land Used for Farming Can Be Taxed at a Much Lower Rate

Texas law lets land used for farming be taxed on its farming value, not its full market value. This can sharply lower the tax bill.

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Special Districts

Many New Subdivisions Have an Extra Tax Line for a MUD or PID

Many new neighborhoods in Collin County have an extra charge on top of regular property taxes. It pays for water lines, roads, and parks built by the developer.

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