Columbia water and sewer rates
At typical use (9 units, about 6,700 gallons a month), a Columbia house pays about $66 a month for water and about $47 for sewer: about $1,350 a year. Estimated from public rates, not anyone's actual bill.
Who supplies water to Columbia houses, what it costs, and how the sewer charge works.
City of Columbia Water
Within corporate limits: $31.90 for 3,000 gallons or less per month, then the per-1,000-gallon rates listed.
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $31.90 a month |
| 0 to 3 thousand gallons | $0.00 |
| 3 to 8 thousand gallons | $9.05 |
| 8 to 25 thousand gallons | $8.11 |
| 25 to 50 thousand gallons | $7.64 |
| 50 to 200 thousand gallons | $7.55 |
| 200 to more | $7.29 |
Sewer
Monthly fixed administrative charge (residential) plus a hydraulic unit charge per 1,000 gallons.
Dates
| When | What |
|---|---|
| 15th of each month | City water, sewer and trash bill due |
Checked October 30, 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.
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