City of Katy Utility Billing / Water Department
City of Katy municipal water, sewer, and garbage service area
Population reference
EPA SDWIS PWS TX1010017 identifies CITY OF KATY as an active Community Water System, local-government owned, serving approximately 25,253 people in Harris County. The system is a municipal provider and does not represent every surrounding Katy-address MUD or private district.
Billing detail
Broad public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly. Meters are read electronically on the 15th, utility bills are mailed on the last day of the month, and payment is due to the City on or before the 16th of the following billing cycle. The account is considered delinquent after the applicable statutory/ordinance period and the City mails a late/cutoff notice.
- Rate structure
- Residential increasing-block volumetric tiers with a 5/8–3/4 inch base charge, regional wholesale-water pass-through charges, and separate sewer and garbage schedules. The City’s effective September 1, 2024 rate sheet lists a $7.60 single-family base, $2.35 per thousand gallon WHCRWA charge, $0.025 BBWD charge, and usage rates of $1.56 per thousand for 3,001–8,000 gallons, $1.63 for 8,001–12,000, $1.69 for 12,001–15,000, and $1.89 above 15,000; the first 3,000 gallon line is separately shown at $2.35.
- Residential cost reference
- Using the City’s published September 2024 schedule, the water portion for 5,000–7,000 gallons is approximately $16.96–$20.08 before sewer, garbage, and pass-through interpretation: $7.60 base plus the applicable single-family usage and wholesale charges. The same rate sheet lists sewer at approximately $5.98 per month for 0–3,000 gallons, $1.23 per thousand for 3,001–8,000, plus garbage of $16.69; actual bills also include WHCRWA/BBWD components and may be updated by later City actions, so the live bill controls.
- Wastewater and sewer calculation
- Katy’s sewer code bases sanitary-sewer charges on building use and water consumption under the City’s rate schedule. The published rate sheet lists single-family sewer rates of $5.98 for 0–3,000 gallons, $1.23 per thousand for 3,001–8,000, $1.17 for 8,001–12,000, $1.11 for 12,001–15,000, and $1.04 above 15,000. The public schedule does not describe a winter-average calculation; sewer-only customers may be billed from estimated consumption plus the applicable administrative charge.
- Meter reading
- Katy reads all meters electronically on the 15th of each month. The public materials do not identify the manufacturer or guarantee hourly AMI data, but the City’s online account provides consumption history and payment history. Monthly readings are used to calculate the tiered water and sewer charges; customers can request emailed bills and monitor consumption through the online account.
- New-account deposit
- A $100 residential water deposit is required before service begins, and the City requires photo ID for both applicants plus proof of ownership or a signed lease/management document. The deposit remains on the account until the applicant terminates service, at which time it is applied against the final bill and any remaining credit is handled under City policy. The code provides special rules for multifamily/commercial deposits and allows a qualified customer moving within the City after two years of good history to avoid an additional deposit under specified conditions.
- Activation or transfer fee
- The City’s public residential setup page does not publish a separate ordinary activation or transfer dollar fee beyond the $100 water deposit and the card-processing fee. Applications may be submitted by email, mail, or in person; complete documentation and payment must be received before service begins. Applications received by 2:00 p.m. may be processed for same-day service, while later applications are processed the next business day. Customers should request the current transfer total from 281-391-4801.
Context, not a score
How documentation coverage compares
This profile
100%
overview fields with research notes
Texas
68%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Broad public detail found
7 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
100%
Primary verification routes
- City of Katy Utility Billing / Water Department public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (TX1010017) ↗
Search the federal drinking-water database using public water system ID TX1010017.