| Election Name: | 2024 Los Angeles County Board of Supervisors elections |
| Flag Image: | File:Flag of Los Angeles County, California.svg |
| Type: | legislative |
| Ongoing: | no |
| Election Date: | March 5, 2024 |
| Previous Election: | 2022 Los Angeles County Board of Supervisors election |
| Previous Year: | 2022 |
| Next Election: | 2026 Los Angeles County Board of Supervisors election |
| Next Year: | 2026 |
| Seats For Election: | 2 out of 5 seats of the Los Angeles County Board of Supervisors |
| Majority Seats: | 3 |
| Party1: | Democratic Party (United States) |
| Seats Before1: | 4 |
| Seats1: | 2 |
| Seats After1: | 4 |
| Party2: | Republican Party (United States) |
| Seats Before2: | 1 |
| Seats2: | 1 |
| Seats After2: | 1 |
The 2024 Los Angeles County Board of Supervisors elections took place on March 5, 2024, to elect members of the Los Angeles County Board of Supervisors. Three of the five seats on the board were up for election to four-year terms. Municipal elections in California are officially nonpartisan; candidates' party affiliations do not appear on the ballot.
Incumbent supervisors Kathryn Barger, Janice Hahn, and Holly Mitchell all won re-election outright, negating the need for a runoff. This was the first supervisorial election cycle without a second round of voting since 2018.
| Election Name: | 2024 Second supervisorial district election |
| Country: | Los Angeles County |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2020 Los Angeles County Board of Supervisors election#District 2 |
| Previous Year: | 2020 |
| Next Election: | 2028 Los Angeles County Board of Supervisors election#District 2 |
| Next Year: | 2028 |
| Image1: | Holly Mitchell official headshot 2020.jpg |
| Candidate1: | Holly Mitchell |
| Color1: | c0c0c0 |
| Popular Vote1: | 158,173 |
| Percentage1: | 68.45% |
| Candidate2: | Daphne Bradford |
| Color2: | c0c0c0 |
| Popular Vote2: | 30,516 |
| Percentage2: | 13.21% |
| Candidate4: | Clint Carlton |
| Color4: | c0c0c0 |
| Popular Vote4: | 26,183 |
| Percentage4: | 11.33% |
| Candidate5: | Katrina Williams |
| Color5: | c0c0c0 |
| Popular Vote5: | 16,222 |
| Percentage5: | 7.02% |
| County supervisor | |
| Before Election: | Holly Mitchell |
| Posttitle: | County supervisor |
| After Election: | Holly Mitchell |
The second supervisorial comprises the cities of Carson, Compton, Culver City, El Segundo, Gardena, Hermosa Beach, Inglewood, Lawndale, Manhattan Beach, and Redondo Beach; the communities of Alondra Park, Del Aire, East Compton, East Gardena, Florence-Graham, Ladera Heights, Lennox, Marina Del Ray, West Athens, West Carson, Westmont, and Willowbrook; as well as the neighborhoods of Westchester and Harbor City north to Koreatown. Incumbent supervisor Holly Mitchell was first elected in a runoff with 60.6% of the vote in 2020.[1]
| Election Name: | 2024 Fourth supervisorial district election |
| Country: | Los Angeles County |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2020 Los Angeles County Board of Supervisors election#District 4 |
| Previous Year: | 2020 |
| Next Election: | 2028 Los Angeles County Board of Supervisors election#District 4 |
| Next Year: | 2028 |
| Image1: | SupervisorHahn.jpg |
| Candidate1: | Janice Hahn |
| Color1: | c0c0c0 |
| Popular Vote1: | 173,324 |
| Percentage1: | 57.80% |
| Candidate2: | Alex Villanueva |
| Color2: | c0c0c0 |
| Popular Vote2: | 84,259 |
| Percentage2: | 28.10% |
| Image3: | John Cruikshank portrait photo, circa 2016–2024.jpg |
| Candidate3: | John Cruikshank |
| Color3: | c0c0c0 |
| Popular Vote3: | 42,272 |
| Percentage3: | 14.10% |
| County supervisor | |
| Before Election: | Janice Hahn |
| Posttitle: | County supervisor |
| After Election: | Janice Hahn |
The fourth supervisorial comprises the cities of Artesia, Bell, Bell Gardens, Bellflower, Cerritos, Commerce, Cudahy, Hawaiian Gardens, Huntington Park, La Habra Heights, La Mirada, Lakewood, Lomita, Long Beach, Lynwood, Maywood, Norwalk, Palos Verdes Estates, Paramount, Pico Rivera, Rancho Palos Verdes, Rolling Hills, Rolling Hills Estates, Santa Fe Springs, Signal Hill, South Gate, Torrance, Vernon, and Whittier; the communities of East Whittier, Rose Hills, South Whittier, Walnut Park, and West Whittier-Los Nietos; and the Los Angeles neighborhoods of San Pedro and Wilmington. Incumbent supervisor Janice Hahn was re-elected in 2020 with 76.2% of the vote.[4]
| Election Name: | 2024 Fifth supervisorial district election |
| Country: | Los Angeles County |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2020 Los Angeles County Board of Supervisors election#District 5 |
| Previous Year: | 2020 |
| Next Election: | 2028 Los Angeles County Board of Supervisors election#District 5 |
| Next Year: | 2028 |
| Image1: | Supervisor Kathryn Barger.jpg |
| Candidate1: | Kathryn Barger |
| Color1: | c0c0c0 |
| Popular Vote1: | 198,083 |
| Percentage1: | 56.81% |
| Candidate2: | Chris Holden |
| Color2: | c0c0c0 |
| Popular Vote2: | 76,429 |
| Percentage2: | 21.92% |
| Image4: | Konstantine Anthony, 2022.jpg |
| Candidate4: | Konstantine Anthony |
| Color4: | c0c0c0 |
| Popular Vote4: | 39,801 |
| Percentage4: | 11.42% |
| Image5: | 3x4.svg |
| Candidate5: | Perry Goldberg |
| Color5: | c0c0c0 |
| Popular Vote5: | 26,588 |
| Percentage5: | 7.63% |
| County supervisor | |
| Before Election: | Kathryn Barger |
| Posttitle: | County supervisor |
| After Election: | Kathryn Barger |
The fifth supervisorial district comprises the cities of Arcadia, Bradbury, Claremont, Duarte, Glendale, Glendora, La Cañada Flintridge, La Verne, Lancaster, Monrovia, Palmdale, Pasadena, San Dimas, San Marino, Santa Clarita, Sierra Madre, South Pasadena, and Temple City; the communities of Acton, Altadena, Castaic, La Crescenta-Montrose, Lake Los Angeles, and Stevenson Ranch; and the Los Angeles neighborhoods of Sunland-Tujunga and North Hollywood. Incumbent supervisor Kathryn Barger was re-elected in 2020 with 58.8% of the vote.[8]