Wonder Lake water and sewer rates
At typical use (9 units, about 6,700 gallons a month), a Wonder Lake house pays about $56 a month for water and about $45 for sewer: about $1,200 a year. Estimated from public rates, not anyone's actual bill.
Who supplies water to Wonder Lake houses, what it costs, and how the sewer charge works.
Pay or manage it
Village of Wonder Lake Water Department
2026 monthly residential base rate $55.76 for up to 6,999 gallons; over-allotment rate $7.96 per 1K gallons.
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $55.76 a month |
| 0 to 6.999 thousand gallons | $0.00 |
| 6.999 to more | $7.96 |
- Source
- Wells: Wonder Lake Water Company community water supply groundwater wells including Well #4 and Well #5 near Thompson Road.
Sewer
2026 monthly residential wastewater base rate $44.61 for up to 6,999 gallons; over-allotment rate $6.37 per 1K gallons.
Ways to pay less
- Seniors: 20% off water and wastewater user rates. Senior Rate: 20% off Water & Wastewater User Rates. How: See the village 2026 water rate schedule.
Dates
| When | What |
|---|---|
| Late fee | Water and sewer late fee (past 20 days): 10% of billing amount. |
Sources
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.
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