The County Executive is responsible for the administrative operation of the county; supervises all administrative executive departments; coordinates with the six elected departmental officials (the assessor, auditor, clerk, prosecuting attorney, sheriff, and treasurer) and the judges of the Superior and District Courts; executes and enforces ordinances and statutes; presents to the Council comprehensive plans for the present and future development of the county; prepares and presents to the Council an annual statement of governmental affairs and a budget for the fiscal year; and nominates citizens to boards and commissions. The Executive, a partisan officeholder, is elected to a four-year term.

The County Assessor is responsible for the assessment of real and personal taxable property throughout the county; calculates property tax levy rates for all taxing districts within the county; administers a variety of property tax exemption and deferral programs; administers destroyed property claims; maintains parcel layer maps and legal descriptions of tax parcels; provides assessment related information to the public and governmental agencies; and answers valuation appeals to the Board of Equalization. The Assessor, a nonpartisan officeholder, is elected to a four-year term.

The County Auditor conducts all elections for federal, state, and local offices and issues; registers voters; reviews and validates petitions for annexations, initiatives and referendums; trains election board members to serve in precinct polling places; issues various business, marriage and vehicle licenses and permits; records, files, and provides public access to all documents of record for the county; and administers the Division of Performance Auditing. The Auditor, a nonpartisan officeholder, is elected to a four-year term.

The County Clerk is the ex officio clerk and financial officer of the County Superior Court system; maintains a judicial information system for court documents received; maintains and manages court files, records, and exhibits; creates and maintains a separate record, including all documents and exhibits, in all court proceedings; issues jury summons and provides jury management for the Superior Court and District Courts; assists individuals representing themselves in the court system pertaining to family law matters (divorce, modification, paternity) and/or seeking domestic violence protection orders; serves as quasi-judicial officer in the issuance of writs and subpoenas; provides public access to court records; maintains an accounting system for statutory fees, fines, and court-ordered moneys; maintains an investment plan for moneys held; and disburses moneys as ordered by the court. The Clerk, a nonpartisan officeholder, is elected to a four-year term.

The County Prosecuting Attorney serves as legal advisor to all county departments and agencies; prosecutes felony, misdemeanor and gross misdemeanor cases; litigates issues regarding child support; advocates for the needs of crime victims; facilitates the testimony of crime witnesses; and provides a pre-prosecution diversion program. The Prosecuting Attorney must be licensed to practice law in Washington. The Prosecuting Attorney, a partisan officeholder, is elected to a four-year term.

The County Sheriff serves as chief law enforcement officer in the county; provides assistance and protection to residents of the unincorporated county through 24-hour police services such as investigation, patrol, emergency response team (SWAT), traffic enforcement, search and rescue, marine patrol, dive team and animal control. There are three outlying Sheriff's precincts (offices), located in Marysville, Monroe, and Mill Creek. The Sheriff, a nonpartisan officeholder, is elected to a four-year term.

The County Treasurer is custodian of funds for the county and all local taxing districts (school, fire, drainage, diking districts, etc.); collects real estate, personal property, and excise taxes and surface water maintenance fees; invests and accounts for funds in accordance with state and county laws and policies; manages county cash flow and banking services. The Treasurer, a nonpartisan officeholder, is elected to a four-year term.