St. Matthews water and sewer rates
Who supplies water to St. Matthews houses, what it costs, and how the sewer charge works.
Louisville Water Company
Louisville Water Company 2026 residential rates for a 5/8-inch meter: a monthly service charge plus a charge per 1,000 gallons
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $17.82 a month |
| 0 to 2 thousand gallons | $1.70 |
| 2 to 10 thousand gallons | $4.70 |
| 10 to more | $4.87 |
- Source
- Water comes directly from the Ohio River or from groundwater naturally filtered through the riverbank.
- Hardness
- Hardness (as CaCO3) was 128 ppm, or 7.5 grains per gallon.
- Lead
- In 2023 tap testing (the most recent required), 0 of 50 sites exceeded the lead action level; the 90th percentile was 1.1 ppb.
- Violations
- Zero water quality violations for the 19th straight year.
Sewer
MSD residential wastewater: a $24.48 monthly service charge (5/8-3/4 inch meter), a residential infrastructure surcharge with a $20.01 monthly minimum charge, and $6.56 per 1,000 gallons of water (Residential Regular Volume Rate), in rates effective September 1, 2026.
Ways to pay less
- Low income: MSD Emergency Wastewater Rate Assistance (EWRAP). Beginning November 1, 2026, income-eligible residential customers may receive a thirty percent (30%) discount on the wastewater charges on their sewer bill. Participation is limited to 3,000 customers or until funding is expended; existing discount customers must reapply. How: Apply for and be approved for the discount. Drops of Kindness (dropsofkindness.com) brings Louisville Water and MSD customer-support options together in one place.
Pay or manage it
Sources
- Louisville Water Company 2026 Tariff, Rate Schedule, and Customer Fees and Charges (PDF)
- Louisville Water: What is Louisville Water's New Year's Resolution for 2026?
- Louisville Water 2025 Water Quality Report (PDF)
- Drops of Kindness (Louisville Water and MSD bill help)
- City of St. Matthews: Metropolitan Sewer District (MSD)
Checked October 22, 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.