City of Saint Charles Utilities Division - Water and Sewer
Saint Charles city and Saint Charles County water/sewer service areas
Population reference
78,961 people (EPA CWS estimate for St. Charles PWS)
Billing detail
Partial 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
- Bi-monthly; Saint Charles sends water and sewer bills approximately every two months and reads water meters every two months.
- Rate structure
- Increasing block tiers by bi-monthly usage. Effective January 1, 2026 for city residents, the water bi-monthly charge is $8.24, with $5.11 per 1,000 gallons for 0–7,900 gallons, $5.48 for 8,000–25,900, and $5.93 above 26,000 gallons. County residents use a separate $9.89 base and $8.35/$8.94/$9.67 tier schedule.
- Residential cost reference
- Approximately $97.02 per month for a city resident using 6,000 gallons per month, calculated over a two-month bill: water $8.24 + 12,000 gallons at $5.11 per 1,000 ($69.56), plus residential sewer $14.07 + a 12,000-gallon winter-average allocation at $9.20 per 1,000 ($110.40), totaling $194.03 bi-monthly or $97.02 monthly. Actual sewer usage is based on the winter average and city/county territory.
- Wastewater and sewer calculation
- Residential sanitary sewer is based on the winter water average from meter readings between December 1 of the prior year and April 30 of the current year. The average is reevaluated each spring and takes effect with the first billing after July 1. City residential sewer is $14.07 bi-monthly plus $9.20 per 1,000 gallons; commercial, industrial, governmental, and nonprofit accounts are billed on actual water usage each billing.
- Meter reading
- Water meters are read every two months, with billing cycles divided into routes. City records describe a conversion to automatic meter reading and 2026 agenda material references Neptune RF meters, but the reviewed current rate page does not state a transmission interval; the operational schedule remains bi-monthly reads and bills.
Context, not a score
How documentation coverage compares
This profile
71%
overview fields with research notes
Missouri
40%
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
Partial public detail found
5 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
71%
Details not confirmed in the reviewed public material
- New-account deposit
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- City of Saint Charles Utilities Division - Water and Sewer public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA Safe Drinking Water Information System ↗
Federal background on public water-system records and their limitations.