Key West water and sewer rates
At typical use (9 units, about 6,700 gallons a month), a Key West house pays about $106 a month for water and about $71 for sewer: about $2,120 a year. Estimated from public rates, not anyone's actual bill.
Who supplies water to Key West houses, what it costs, and how the sewer charge works.
Pay or manage it
Florida Keys Aqueduct Authority
FKAA rates effective 10/01/2026: monthly base facility charge for a 5/8 x 3/4 inch meter plus five consumption tiers per thousand gallons.
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $26.81 a month |
| 0 to 6 thousand gallons | $11.26 |
| 6 to 12 thousand gallons | $16.46 |
| 12 to 30 thousand gallons | $18.46 |
| 30 to 50 thousand gallons | $20.58 |
| 50 to more | $22.59 |
Sewer
City of Key West sewer: $30.25 base charge unit per month plus $5.99 per 1,000 gallons of flow, for fiscal year 2026-27 as in the city's public notice.
How Key West compares with nearby cities
Water, a month
- Cutler Bay · 114 mi$23
- Palmetto Bay · 117 mi$25
- Pinecrest · 119 mi$25
- Key West$106
Water only, at each city's typical use; sewer is left out because some cities bill it on the tax bill.
Sources
Checked October 28, 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.
Water bill in other Florida cities
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