The average cost to pump a septic tank in North Carolina in 2015, using ZIP code 27601 as an example, ranges from $280 to $370, according to HomeAdvisor, Inc. The cost varies depending on the size of the tank and the location of the property.
The cost in North Carolina falls within the average price range nationally, which is roughly $250 to more than $480. However, in the case of a failing septic system or a system that requires replacement parts, these costs sometimes increase exponentially, reaching $1000 to over $2000, according to CostHelper. Get estimates from several licensed contractors before hiring anyone to do this type of work.