2 candidates are tracked for Washington County Commissioner, District 4, headed to a November 3, 2026 runoff: Steve Callaway and Kipperlyn Sinclair. Candidate information follows official Washington County election filings; verify with the official election office linked below.
Nonpartisan seat representing District 4. Open seat: eight-year incumbent Jerry Willey did not seek reelection. Per OPB's reporting on the May 19, 2026 primary, former Hillsboro Mayor Steve Callaway led a six-candidate field with about 36% of the vote; Hillsboro City Councilor Kipperlyn Sinclair finished second. Ayla Hofler, Anthony Martin, Paul Schaefer and Kimberly Culbertson were eliminated. Callaway and Sinclair advance to the November 3, 2026 runoff; results were reported as unofficial/preliminary.
County commissioner. The county board is the county's legislative and, in most states, executive body. Commissioners adopt the county budget and property tax rate, oversee roads, the jail, public health, planning and zoning in unincorporated areas, and appoint or confirm department heads. In counties with an elected county executive or judge, the board's role is mainly the budget and ordinances.
This race. Nonpartisan: candidates appear without party labels.
Oregon › Washington County › Washington County Commissioner, District 4
Nonpartisan
Per the per OPB.
Steve Callaway built his career as an educator in Washington County and previously served as a Hillsboro City Councilor and Mayor, per his campaign site.
Nonpartisan
Per the campaign site.
Kipperlyn Sinclair has served on the Washington County Planning Commission and a city council, per her campaign site.
Who is running for Washington County Commissioner, District 4 in 2026?
2 candidates are tracked for Washington County Commissioner, District 4, headed to a November 3, 2026 runoff: Steve Callaway and Kipperlyn Sinclair. Candidate information follows official Washington County election filings; verify with the official election office linked below.
When is the Washington County Commissioner, District 4 election in Oregon?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Oregon are on the Oregon election hub at theballotbrief.com.
How do I see my exact Washington County ballot?
Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.
Candidate roster from official Washington County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Oregon election office, or see the full Washington County sample ballot and your exact ballot by address.
19 tracked races in Washington County, Oregon. Landed here from another county's search? Look up your own ballot below.