2 0 2 0
Cost of Clean Water Index
104 Million
Regional Average Annual Charges, 2020
POPULATION SERVED
All Respondents
174
UTILITY RESPONDENTS
Average Charge for Wastewater Services Increased Nearly 3% in 2020
$527
NACWA’s 2020 Cost of Clean Water Index indicates that the average cost of wastewater services rose 2.9% in 2020, higher than the increase in the rate of inflation as measured by the Consumer Price Index (CPI) (see Annual Change in Cost of Clean Water Index vs. Inflation chart on page 2). National charges for wastewater collection and treatment services have steadily risen above the rate of inflation for the past 19 years.
AVERAGE NATIONAL ANNUAL SEWER SERVICE CHARGE
2.9%
In 2020, the national average amount that a single-family residence paid for wastewater services was $527. However, 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 Charges map shows a breakdown of average charges by EPA region. The average service charge by Region varies from a low of $306 in EPA Region 8 to a high of $902 in EPA Region 1.
INCREASE IN SEWER CHARGES FROM 2019-2020
1.2%
INCREASE IN CONSUMER PRICE INDEX 2019-2020
2 0 2 0 C O S T O F C L E A N WAT E R I N D E X
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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