The number of complaints to the Local Government Ombudsman against West Somerset Council has fallen for the third year running.
There were only five complaints this year compared with 10 last year and 11 the previous year, the authority said.
One was settled without investigation and no reports were issued against the council in the other four cases.
The main areas of complaint reduction were in planning and building control and environmental health.
Council leader Keith Ross said: "We have directed a significant level of staff training to customer care so we're delighted by the drop.
"We will continue to focus resources to improve our service delivery because we're striving to achieve 100% customer satisfaction."