Municipal Department
FIRST U.D. OF KNOX COUNTY
Serving KNOXVILLE
Population served
115531 people (EPA SDWIS 2026Q2 active CWS estimate for TN0000369)
State system code
FIPS 47
Billing frequency
Monthly billing. The 2026 rate schedule publishes monthly customer charges and says the net bill applies when paid by the due date shown on the rendered bill.
Provider briefing
How this utility’s billing works
FIRST U.D. OF KNOX COUNTY operates as a municipal department serving KNOXVILLE. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Increasing block tiers plus a monthly customer charge. In 2026, residential water is $14.12 monthly plus $3.73 per 1,000 gallons from 1–8,000 gallons, $4.63 from 8,001–20,000, and $6.52 over 20,000. Seasonal/irrigation water has a separate higher structure and does not carry sewer charges.. Bills are generated monthly billing. the 2026 rate schedule publishes monthly customer charges and says the net bill applies when paid by the due date shown on the rendered bill., and a typical residential cost reference is Approximately $98 per month for a typical residential customer using 6,000 gallons, before any grinder-pump or special-area charges. The estimate is $36.50 for water ($14.12 charge plus six 1,000-gallon units at $3.73) and $61.01 for residential sewer ($25.73 charge plus six units at $5.88). The published 2026 residential sewer maximum is $96.29.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Residential sewer is based on metered water use: a $25.73 monthly customer charge plus $5.88 per 1,000 gallons for 1–12,000 gallons, with no additional charge above 12,000 and a $96.29 maximum bill. Sewer billing begins when a sewer line is available under the district’s published statutory/service rules, even if a customer has not yet connected. Residential grinder-pump customers pay an additional $12 monthly fee.
Meter and infrastructure notes
First Utility uses automated meter reading (AMR) throughout the district, capturing readings electronically to improve accuracy and shorten the gap between reading and billing. The customer portal can provide a consumption profile with day-by-day and hourly usage; a $35 consumption-audit fee applies when a customer requests more than two audits in 12 months. The 2026 schedule also adds a $1 monthly EyeOnWater monitoring fee to newly installed 1.5-inch-and-larger meters.
Emergency water support
Report a leak or water emergency
865-966-9021 for after-hours emergencies. The ordinary customer-service line is 865-966-9741, answered 24 hours according to the customer-service page, with normal office service Monday through Friday, 8:00 a.m. to 4:30 p.m.
Official starting point
Choose the right next step
Reading this profile
A practical reference for KNOXVILLE
FIRST U.D. OF KNOX COUNTY is listed here as a municipal department. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.