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Who is my U.S. representative in CA-21?
AI Overview Your U.S. representative for California's 21st Congressional District is Democrat Jim Costa. You can visit the Congressman Jim Costa Official Website for contact information and office locations, or look up your specific zip code on the Find Your Representative tool on House.gov to confirm district boundaries. GovTrack.us +1 1 site California's 21 st Congressional District - GovTrack.us Each state elects two senators to the United States Senate for staggered 6-year terms. Senators represent the entire state. Califo... GovTrack.us Show all AI responses may include mistakes. Learn more
Cited sources
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly identifies Jim Costa as the U.S. representative for CA-21, matching the ground truth.
Human
not reviewed
Final
accurate
Ground truth
representative: Jim Costa
clerk.house.gov 100
as of 2026-07-07