There are 14 departments in the City of Eureka organizational structure. The responsibility for the operation of each department is assigned to a Department Director appointed by the City Manager, with the exception of the City Clerk and the City Attorney, who are appointed by the City Council.

Building
City Attorney
City Clerk
City Manager
Community Development
Engineering
Finance
Fire
Mayor & City Council
Personnel
Police
Public Works & Building
Recreation
Recycling/Waste Diversion
Redevelopment Agency
Risk Managment
Sequoia Park Zoo
Utilities Operations