The 2018 Orange County Board of Supervisors elections was on June 5, 2018, as part of the primary election on June 5, 2018. Three of the five seats of the Orange County, California

Board of Supervisors A board of supervisors is a governmental body that oversees the operation of county government in the U.S. states of Arizona, California, Iowa, Mississippi, Virginia, and Wisconsin, as well as 16 counties in New York. There are equivalent agenc ...

were up for election. County elections in California are officially nonpartisan. A two-round system will be used for the election, starting with the first round in June; followed by a runoff in November between the top-two candidates in each district. Runoffs are only held if no candidate receives a majority in each district.

Summary of results

* Note: All elections for the Orange County Board of Supervisors are officially nonpartisan. The parties below identify which party label each candidate would have run under if given the option. Candidates all appear on the ballot as ''nonpartisan''.

Summary of results by county supervisorial district

* For districts not displayed, there is no election until 2020.

Close races

Seats where the margin of victory was under 5%: #

District 2

District 2 consists of coastal Orange County, including Huntington Beach, Costa Mesa,

Cypress Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word ''cypress'' is derived from Old French ''cipres'', which was imported from Latin ''cypressus'', the ...

, La Palma, Los Alamitos, Newport Beach, Seal Beach, most of Fountain Valley, and neighborhoods in southern Buena Park.

General election

Candidates

Michelle Steel Michelle Eunjoo Steel ( Park, born June 21, 1955) is an American politician serving as the U.S. representative for California's 45th congressional district since 2023, previously representing the 48th congressional district from 2021 to 2023. A ...

(Republican) * Brendon Perkins (Democratic) * Michael Mahony (Libertarian)

Endorsements

Results

District 4

District 4 consists of inland northwestern Orange County, taking in Fullerton, La Habra, Placentia, Brea, western

Anaheim Anaheim ( ) is a city in northern Orange County, California, part of the Los Angeles metropolitan area. As of the 2020 United States Census, the city had a population of 346,824, making it the most populous city in Orange County, the 10th-most p ...

, and most of Buena Park. Incumbent Shawn Nelson retired to run for

California's 39th congressional district California's 39th congressional district is a congressional district in the U.S. state of California. The district includes parts of Los Angeles, Orange and San Bernardino counties, and includes Fullerton, La Habra, La Habra Heights, Brea, Bue ...

General election

Candidates

* Doug Chaffee (Democratic) * Tim Shaw (Republican) * Joe Kerr (Democratic) * Lucille Kring (Republican) * Rose Espinoza (Democratic) * Cynthia Aguirre (Democratic)

Endorsements

Results

Runoff

Results

District 5

District 5 encompasses southern Orange County, including Aliso Viejo, Laguna Hills, Laguna Niguel, Laguna Woods, Lake Forest, Mission Viejo, Rancho Santa Margarita, San Juan Capistrano, Laguna Beach, San Clemente, and Dana Point.

General election

Results

References

External links

;Official campaign websites of second district candidates
Brendon Perkins for SupervisorMichelle Steel for Supervisor
;Official campaign websites of fourth district candidates
Doug Chaffee for SupervisorTim Shaw for Supervisor
;Official campaign websites of fifth district candidates
Lisa Bartlett for Supervisor
{{2018 United States elections Orange County Board of Supervisors Orange County Board of Supervisors 2018 Orange County Board of Supervisors 2018 Orange County Board of Supervisors