Thurston County Government - Agencies, Elected Offices, and Departments
Elected Offices (Click for description)


The Assessor's Office determines fair market value of all taxable property in Thurston County, calculates levy rates for all taxing districts, and administers exemptions as provided by state law.


​The Auditor's Office manages all elections and voter registration, handles motor vehicle licensing, records and maintains deeds, real estate contracts and liens, and issues marriage licenses. This office also examines, processes and reports County financial activity.

Board of County Commissioners

​The three-member Board of Commissioners is the legislative and executive authority of the County. The Board has budget and financial authority over all offices and Departments, adopts laws governing all aspects of the County, and appoints members to advisory boards and commissions.

Board of Health

​The Thurston County Board of Health is comprised of the three currently elected Thurston County Commissioners. The Board of Health oversees efforts to improve the public's health by providing leadership that shapes the Public Health & Social Services department's approach to public health policies and programs.

​The Coroner's Office investigates all sudden, violent, suspicious and unusual deaths within the County.

County Clerk

​The Clerk's Office is responsible for administrative and financial functions of Superior Court, maintains all court files, and keeps records of all court proceedings. The purpose of the office of County Clerk is to ensure the separation of powers among the three branches of government by preserving the integrity of the judiciary. By being independent of the judicial branch, the Clerk protects the judiciary from the appearance of impropriety or unfairness in the setting of cases, implementation of orders, or investment of funds.​

District Court

Thurston County District Court is a court of limited jurisdiction that hears misdemeanor and gross misdemeanor cases; criminal traffic, traffic and other infractions; civil cases up to a maximum claim of $50,000, small claims cases up to a maximum of $2,500; and various other civil proceedings, such as: name change and anti-harassment petitions.

Prosecuting Attorney

​The Prosecuting Attorney's Office prosecutes criminal cases, provides legal advice to County officials and represents the County in civil cases.


​The Sheriff's Office is responsible for providing police services in the unincorporated areas of Thurston County and for processing orders of the court throughout the County. The Sheriff manages the County jail and all law enforcement activities.

Superior Court

Thurston County Superior Court is the trial court for all felonies and civil cases involving amounts greater than $25,000 dollars. Superior Court also has jurisdiction over divorce and civil domestic violence cases, hears appeals of District Court cases, and hears referred cases wherein the State of Washington is Litigant. Superior court also oversees Juvenile Court.


​The Treasurer's Office acts as the banking agent for the County, school districts, fire districts and other units of local government, and has responsibility for collecting taxes and receiving, disbursing and investing funds.

Departments (Click for description)

Area Agency on Aging

​The Area Agency on Aging plans, coordinates, develops, funds and advocates services on behalf of the elderly in Thurston, Lewis and Mason counties. Provides case management information and assistance and nurse oversight for elderly and some disabled clients..

Central Services - Doing Business

​The Central Services Department provides a mix of internal county services. The Facilities Division maintains more than 650,000 square feet of county owned buildings, oversees contracted facilities services, and administers utilities payments. The Information Technology Division provides desktop, business application, network, IT security, IT project management, telecommunication, and geographical information system services. The Fleet Services Division purchases and maintains County owned vehicles and heavy equipment and provides fuel, central stores, and radio services. The Administrative Services Division provides county-wide mail services, records management, and surplus program administration as well internal contracts and purchasing coordination. The Budget and Accounting team manages internal budgetary and accounting services. The Capital Projects team administers major construction projects and leases.

Civil Service Commission

​The Civil Service Commission establishes and maintains Employment and Promotion Eligibility Lists; maintains the Classification Plan for the Thurston County Sheriff's Office, and investigates and resolves issues relating to Civil Service Rule Compliance.

County Manager

The Thurston County Commissioners appoint a County Manager who is responsible for following through with Board direction for public roads and public works programs, public health services, planning and zoning of unincorporated areas, emergency services or civil defense programs, county park and recreation systems, and other services and programs which are not clearly the responsibility of another elected county official.

​Emergency Services:

E​mergency Management

Thurston County Emergency Management maintains and administers the County's comprehensive emergency management plan and program.

Medic One

Medic One is an emergency care system designed to provide immediate response to all kinds of medical emergencies. All 18 fire Departments located in the County participate in this system, so emergency aid can reach nearly anywhere in the County in an average of five minutes.

GeoData Center

​The purpose of the Thurston GeoData Center is to provide County staff with accurate spatial geographic information and provide access and support in utilizing this information in their daily operations. Secondarily, TGC provides support and services to Federal, State, and local agencies, private business and the general public.

Human Resources

Human Resources handles all human resource personnel matters, including benefits administration, recruitment, labor relations, employee training programs and ADA Coordination. It is also responsible for the County risk management program including coordination of the County-wide safety program. The Department supports the Board of Equalization, which hears tax assessment appeals, they also support the LEOFF Disability Board, the Thurston Council on Cultural Diversity and Human Rights, and the Salary Commission for Elected Officials.

Permit Assistance Center:

The Permit Assistance Center is the central service center for citizens seeking information, application, or assistance on land use, construction and environmental health related issues.


Frequently Asked Questions about the Permit Assistance Center and various permitting processes.

Pretrial Services

Thurston County Pretrial Services consists of Pretrial Officers who conduct pretrial investigations, supervision of released defendants, and make recommendations for pretrial release conditions.

Public Defense

Thurston County Public Defense is responsible for providing defense attorney services for indigent people in Superior, Juvenile and District courts.

Public Health and Social Services:

​The mission of the Public Health & Social Services Department is to promote healthful social, economic and environmental conditions for all residents. The Department is governed by the Board of Health and Board of County Commissioners.

Public Works:

​​The Public Works Department is responsible for the design, construction, maintenance and improvement of the more than 1,000 miles of roadways within Thurston County.

Noxious Weeds

​The Noxious Weeds division's mission is to protect the citizens, the natural resources, and the agricultural resources of the County from the degrading impact of invasive, noxious weeds.

Parks & Recreation

​The Parks & Recreation division's mission is to be the regional steward of parks, open space, and natural resource lands and waterways dedicated to public use for recreation and leisure enjoyment.

Transportation Benefit District

​The Thurston County Transportation Benefit District was created to provide a mechanism for funding important road maintenance projects, new transportation infrastructure, and public transit systems that are aging, deteriorating, and not keeping up with inflation or population growth.

Resource Stewardship:

​The Resource Stewardship Department provides plan review, addressing and inspection services for all new construction in the County, contracts with a local fire district to provide fire review and inspection services, and processes land use permits and applications for development projects under adopted regulations and plans. This Department also oversees the Permit Assistance Center, which is the central service center for citizens seeking information, application, or assistance on land use, construction and environmental health related issues.

Capital Facilities Planning

​The Capital Facilities Plan (CFP) is a six-year plan of capital projects with estimated dates and costs, and proposed methods of financing. The Plan is reviewed and updated annually.


​The Thurston County Fair, organized by County government in cooperation with a citizen advisory board, is a family-oriented, old fashioned five-day fair that takes place the first weekend in August each year. The fair also provides off-season storage and facility rental opportunities.

​Land Use and Environmental Review

Thurston County's Land Use and Environmental Review division proposes and implements land-use regulations, which are intended to promote sound, coordinated development and the most appropriate use of land, and to conserve and restore natural resources that make Thurston County such a special place to live.

Long Range Planning

​The mission of Long Range Planning is to plan for sustainable land use and development within the unincorporated areas of the county so communities can thrive in a healthy environment.

Natural Resources Program

​The Natural Resources Program creates plans and policies to address key issues such as preserving water resources, protecting salmon, and managing the application of chemicals by Thurston County government operations and in sensitive aquifer recharge areas.

​Regional Sustainability

Regional Sustainability - Climate change has become a household phrase as the world struggles with the threat of a warming planet. Washington State is particularly vulnerable to climate change, because our economy depends largely on natural resources.

Stormwater Utility

​The Stormwater Utility Program performs a wide array of activities to protect the health of streams, lakes and Puget Sound.

​Strategic Planning

Comprehensive Plans guide Thurston County’s physical development and identify the transportation and other public facilities needed to meet the needs of population growth.

WSU Extension

​For over 100 years, Washington State University has been connecting with you, your neighbors, and your community through our Extension programs. Every day, Thurston County Extension works to extend the university’s knowledge—addressing real-world issues to help find new opportunities for our farmers, natural resource managers, families, young people, and business leaders to become successful and thrive.