Denton water and sewer rates

Who supplies water to Denton houses, what it costs, and how the sewer charge works.

City of Denton

City of Denton residential water rates effective Oct 1, 2026, billed monthly per 1,000 gallons in six blocks

Use a monthPrice per 1,000 gallons
Fixed charge$17.31 a month
0 to 5 thousand gallons$3.96
5 to 7 thousand gallons$4.25
7 to 15 thousand gallons$4.43
15 to 30 thousand gallons$7.91
30 to 50 thousand gallons$10.58
50 to more$13.15
Source
Surface water from Lake Lewisville and Lake Ray Roberts in Denton County.
Violations
None: the 2025 water quality report lists no violations.
Lead
90th-percentile lead was 1.5 ppb in 2024 testing (action level 15 ppb), with no sites above the action level.

Sewer

Wastewater inside the city limits with City of Denton water service: $16.39 facility charge per bill plus $5.66 per 1,000 gallons effluent. The volume is based on your winter average daily water use from the December through February billing months, and billed volumes are capped at 18,000 gallons a bill.

Other charges on the utility bill

  • Storm drainage (1,001 to 2,000 square feet of impervious surface): $3.52 a month

Ways to pay less

  • WaterWise irrigation rebates. Denton Water customers can get a free irrigation evaluation, a smart irrigation controller rebate of 100% up to $300 and a $100 sprinkler tune-up rebate. How: Check eligibility in the WaterWise Program Manual on the City of Denton rebates page.
  • Leak adjustment on a high water bill. If a broken pipe or fixture spikes your bill at least 50% above normal, the city can credit back 50% of the extra usage (up to 100,000 gallons) for up to two months, once every 12 months. How: Fix the leak within 30 days and apply within 60 days of finding it with the Water Leak Adjustment Request Form.

Sources

  1. City of Denton water rate ordinance, effective Oct 1, 2026
  2. City of Denton wastewater and storm drainage rate ordinance, effective Oct 1, 2026
  3. City of Denton 2025 water quality report
  4. City of Denton sustainability rebates (GreenSense, WaterWise)
  5. City of Denton water leak adjustment request form

Checked October 20, 2026. Every number here comes from the public sources listed, matched by our checker.

Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.