Near the end of the City of Parker's October 2026 fee schedule, below the meter deposits and impact fees, is a six-line table that matters more to an acreage owner than most numbers on a listing sheet. It opens with a $59.32 monthly base fee that covers the first 4,000 gallons. Then it climbs in steps. The next block costs $6.45 per 1,000 gallons, and anything above 70,000 gallons in a month costs $22.02 per 1,000.
At the top of the scale, a gallon of water costs about three and a half times what it costs just above the base. In Parker, the gallons that reach the top of the scale are mostly sprinkler gallons. A buyer comparing two homes on similar lots can face very different summer carrying costs, and most of that gap comes from how much turf sits on the irrigation system, not from square footage under roof.
October 2026 Finished a Plan the City Set Out in 2022
These rates did not show up out of nowhere. In December 2022, the City's rate study laid out a five-year plan with an adjustment each October 1, starting October 2022 and ending October 2026. The study gave its reasons: rates had not changed since 2020, inflation was raising operating and capital costs, the utility planned $12.4 million in capital improvements over ten years, and the North Texas Municipal Water District was forecasting "significantly higher rate increases." The plan raised the base and volume charges by the same percentage each year and kept the tier structure the same.
The October 2026 column in that study matches the schedule now in effect line for line. Here are the rates before the plan and today:
| Monthly charge | Before the plan, 2022 | October 2026 |
|---|---|---|
| Base fee, first 4,000 gallons | $40.00 | $59.32 |
| 4,001 to 15,000 gallons, per 1,000 | $4.35 | $6.45 |
| 15,001 to 30,000 gallons, per 1,000 | $5.40 | $8.01 |
| 30,001 to 50,000 gallons, per 1,000 | $6.75 | $10.01 |
| 50,001 to 70,000 gallons, per 1,000 | $10.75 | $15.94 |
| 70,001 gallons and up, per 1,000 | $14.85 | $22.02 |
| Residential sewer, flat monthly | $78.98 | $123.75 |
Every water line rose about 48% over the four years, and the flat sewer charge rose about 57%. Since the water increases were the same percentage across every tier, the gap between the cheapest and most expensive gallon grew in dollar terms. In 2022 the top tier cost $10.50 more per 1,000 gallons than the first metered tier. Now it costs $15.57 more.
The City's Sample Bills Stop at 20,000 Gallons
The rate study showed what the plan would mean for typical households, using three sample bills. At October 2026 rates, a home using 5,000 gallons a month pays $65.77, a home using 10,000 gallons pays $98.02, and a home using 20,000 gallons pays $170.31.
Those amounts describe a house. They don't describe a Parker lot with a large irrigated lawn, because irrigation goes through the same rate table and quickly moves past the first two tiers. The study labels its rate table "Residential and Irrigation."
The scale behind the water comes from the U.S. Geological Survey, which puts one inch of water over one acre at about 27,154 gallons. Texas A&M AgriLife's bermudagrass lawn calendar says to time irrigation by drought stress and soil conditions. It notes that turf generally does well when irrigation or rain replaces at least 60% of evapotranspiration, and it uses a catch-can test to calibrate a weekly application of about one inch.
What an Irrigated Acre Draws Through the Tiers
The examples below run the City of Parker fee schedule against a summer month with four weekly one-inch waterings. They use only the tier rates in that schedule and cover the water charge alone. Household use would come on top.
- Half an acre of turf, about 54,300 gallons. The first 50,000 gallons cost $450.62 across the lower tiers. The remaining 4,300 or so are billed at $15.94 per 1,000, for a total of about $519.
- A full acre of turf, about 108,600 gallons. Getting to 70,000 gallons costs $769.42. The remaining 38,600 or so are billed at $22.02 per 1,000, which adds about $850, for a total of about $1,620.
- The same full acre at pre-plan rates. The same usage on the 2022 table comes to about $1,092. The October 2026 schedule adds roughly $527 to that month.
Doubling the lawn from half an acre to a full acre roughly triples the water charge. In the full-acre month, the water above 70,000 gallons is about a third of the volume and more than half of the bill. Two homes of the same size on the same street can have very different August bills if one has a sprinkler system watering pasture-scale turf and the other has a small lawn surrounded by native grass or beds.
Location adds another layer. The schedule applies a 30% premium to service outside the city. Where a home is on city sewer, there is also the flat $123.75 residential sewer charge, which stays the same however much the lawn drinks.
Fall Showings Happen After the Sprinklers Are Turned Down
The rate table creates a timing problem in real transactions. AgriLife recommends turning irrigation off or cutting it way back from late fall to early spring, while warm-season grass is dormant. Its St. Augustinegrass guide gives the same advice for winter and recommends deep, infrequent watering, usually no more than once or twice a week in warmer months.
With the sprinklers off, an acreage household using 8,000 gallons a month pays about $85 for water under the October 2026 schedule. A buyer touring Parker this November who asks about utilities may hear a winter number. That answer is accurate. It is also one of the cheapest months of the year at that address.
The Paperwork That Shows the Real Number
For acreage buyers weighing Parker against Lucas or Fairview, a year of water history says more about carrying cost than a single bill does. Here's what to ask for and why:
- Twelve consecutive months of water bills. Gallons matter more than dollars. Dollar amounts from before October 2026 were billed at earlier steps of the plan, but the gallon counts can be repriced against the current table.
- The peak summer month specifically. That month shows how far the current watering setup reaches into the $15.94 and $22.02 tiers.
- A description of what the irrigation system covers. Two lots of the same acreage can have very different irrigated areas, and the irrigated area is what drives the top tiers.
- Whether the home has city water and city sewer, and whether the 30% outside-city premium applies. These set the fixed portion of the bill before any sprinkler runs.
On the selling side, a Parker owner can share that same twelve-month record early. Buyers on acreage tend to discount what they can't see, and the gap between a careful lawn program and an all-turf system shows up clearly in the gallon counts.
Upstream, the Wholesale Price Is Still Moving
Parker's FAQ page says the City buys its water from the North Texas Municipal Water District. At the district's July 30, 2026 work session, staff proposed a FY2026-27 member water rate of $4.50 per 1,000 gallons, up $0.36, or 8.7%, from the prior year. The district announced that its board approved the FY2026-27 budget at its September 24, 2026 meeting.
October 2026 was the final year in the rate plan Parker adopted after the 2022 study. That study listed rising NTMWD wholesale costs as one of the reasons for the plan. Any rates after this step will come from a decision the City has not yet published. For a buyer budgeting several years out, the current table is the best published starting point.
Frequently Asked Questions
Does the October 2026 rate apply to irrigation meters too? The 2022 rate study labels its table "Residential and Irrigation," and its October 2026 column matches the current fee schedule, which lists the water rates under Ordinance No. 840. Billing for a specific property can be confirmed with the City.
What are Parker's current watering-day rules? The City posts its conservation information on the Water Conservation page. Rules and drought stages can change, so check there for the current version.
Is there a free tool for timing sprinklers in Collin County? WaterMyYard is a free program offered in parts of Texas. The service uses local weather-station and rain-gauge data to send free weekly watering advice based on a user's lawn and irrigation system, and you can check coverage by address, city, or ZIP code.
Are trash rates changing too? Yes. The fee schedule lists solid waste rates effective January 1, 2027, including $18.06 a month for weekly two-cart collection. Those charges are subject to 8.25% sales tax.
This post is general information about published municipal rates. It is not legal, tax, or financial advice, so please confirm the figures for your own property with the City of Parker and the right professionals.
When we list a Parker acreage property, the Grisak Group puts together the full twelve months of utility history alongside the drone footage and photography, so buyers can see the real carrying cost of the land from the start. If you plan to sell an irrigated estate in Parker, talk with us about building that record before your first showing. List With Us.
