2 0 2 4
Cost of Clean Water Index $545
$1,090 $577
$859
$403 $522 $747
$490
107 Million
UTILITY RESPONDENTS
$612
AVERAGE NATIONAL ANNUAL SEWER SERVICE CHARGE
3.7%
INCREASE IN SEWER CHARGES 2023-2024
2.9%
INCREASE IN CONSUMER PRICE INDEX 2023-2024
$662
Regional Average Annual Charges, 2024
POPULATION SERVED
170
$709
All Respondents
Average Charge for Wastewater Services Increased 3.7% in 2024 NACWA’s Cost of Clean Water Index for calendar year 2024 indicates that the average cost of wastewater services rose 3.7 percent. The average increase was 0.8 percentage points above the rate of inflation as measured by the Consumer Price Index (CPI) (see Annual Change in Cost of Clean Water Index vs. Inflation chart). This reverses a three-year trend where national charges for wastewater collection and treatment services were outpaced by inflation. In 2024, the national average amount that a single-family residence paid for wastewater services was $612. Wastewater service charges vary widely among EPA regions and states, and are affected by demographics, geography, system age, regulatory requirements, and a range of other issues. To illustrate these variations, the Regional Average Annual Charge map shows a breakdown of average charges by EPA region. The average service charge by Region varies from a low of $403 in EPA Region 8 to a high of $1,090 in EPA Region 1.
2 0 2 4 C O S T O F C L E A N WAT E R I N D E X | T H E N AT I O N A L A S S O C I AT I O N O F C L E A N WAT E R A G E N C I E S