The 2018 California lieutenant gubernatorial election was held on November 6, 2018, to elect the lieutenant governor of California. Incumbent Democratic lieutenant governor Gavin Newsom was ineligible to run for reelection due to term limits and ran for governor of California instead. Democrats Eleni Kounalakis and Ed Hernandez faced each other in the general election, as no Republican finished in the top two positions of the nonpartisan blanket primary that was held on June 5, 2018.
Results by county. <span style="background:#b0ceff>Blue</span> represents counties won by Kounalakis and counties with Democratic vote majorities. <span style="background:#ffb6b6">Red</span> represents counties won by Harris and counties with Republican vote majorities. <span style="background:#88f2f2>Cyan</span> represents counties won by Ed Hernandez. <span style="background:#fc6>Orange</span> represents counties won by Fennell. <span style="background:#d7eaf9>Light blue</span> represents counties with Democratic vote pluralities. <span style="background:#ffe8e8>Light red</span> represents counties with Republican vote pluralities.
<span style="background:#B3D3FF>Blue</span> represents counties won by Kounalakis. <span style="background:#88f2f2>Cyan</span> represents counties won by Hernandez.