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20 seats from even-numbered districts in the California State Senate 21 seats needed for a majority | |||||||||||||||||||||||||||||||
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 Results: Democratic gain Democratic hold Republican hold No election held | |||||||||||||||||||||||||||||||
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| Elections in California |
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The 1998 California State Senate elections were held on November 3, 1998. Senate seats of even-numbered districts were up for election. Senate terms are staggered so that half the membership is elected every two years. Senators serve four-year terms and are limited to two terms. Democrats expanded their majority, winning a Republican-held seat and an Independent-held seat.