Columbia water and sewer rates
Who supplies water to Columbia houses, what it costs, and how the sewer charge works.
Columbia Power & Water Systems
Columbia Power & Water Systems residential rates inside city limits: a customer charge (minimum bill) plus a commodity charge per 1,000 gallons
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $20.10 a month |
| 0 to 8 thousand gallons | $4.37 |
| 8 to 20 thousand gallons | $4.97 |
| 20 to more | $5.27 |
- Source
- Water comes from a surface water source called the Duck River.
- Lead pipes
- CPWS reports the water system has no lead service lines or galvanized service lines requiring replacement.
Sewer
Inside city limits: a $20.87 monthly user charge plus a volume charge of $6.82 per thousand gallons of water used.
Sources
- City of Columbia FY 2027 budget book (tax rate, sewer rates, CPWS water rates)
- City of Columbia Wastewater
- CPWS rates and fees (water)
- CPWS 2025 water quality report
Checked October 21, 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.