Local Voter GuidesNot a ballot

Cottage Grove water and sewer rates

At typical use (9 units, about 6,700 gallons a month), a Cottage Grove house pays about $61 a month for water and about $83 for sewer: about $1,740 a year. Estimated from public rates, not anyone's actual bill.

Who supplies water to Cottage Grove houses, what it costs, and how the sewer charge works.

Pay or manage it

Cottage Grove Water and Sewer Utility

Monthly water service charge for a 5/8 or 3/4 inch meter plus the monthly public fire protection charge; volume charge per 1,000 gallons.

Use a monthPrice per 1,000 gallons
Fixed charge$28.10 a month
0 to 4 thousand gallons$4.81
4 to 8 thousand gallons$5.10
8 to more$5.97
Source
Three active groundwater wells, 530 to 675 feet deep.
TTHM
Level found 4.7 ppb against a limit of 80 ppb; no violation.

Sewer

Sewer service charge is monthly for a 5/8 or 3/4 inch meter; the sewer volume charge is $9.45 per 1,000 gallons.

Ways to pay less

  • One-time $50 sewer credit for a new lawn. New residence How: Residents establishing the initial lawn at a new residence can ask in writing for a one-time $50.00 sewer credit.

Sources

  1. Water & sewer rates
  2. 2026 sewer rate study

Checked October 31, 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 Wisconsin cities

Beaver Dam water billBeloit water billBerlin water billBrookfield water billBrown Deer water billColumbus water billCudahy water billDe Pere water billDelafield water billDelavan water billDodgeville water billEast Troy water billAll Wisconsin cities →