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Alameda County

Who represents this county

Alameda County is cut up by 213 overlapping districts — Congress, the Legislature, the Board of Supervisors, city councils, school boards, water, transit and parks. Your address sits inside about a dozen of them at once. Switch one on to see which precincts it covers.

To find it, the address is sent to the US Census Bureau’s geocoder. We do not keep it — it is not saved, logged or added to your account. Only the precinct comes back.

Loading Alameda County precincts…

Precinct boundaries published by Alameda County; normalized and served by rovor.app.

Why the edges look ragged

A district is shaded by the precincts inside it, because precincts are what the county actually publishes. Smoothing them into a single outline would look tidier and be wrong — one Assembly district comes out 78 km² short that way. The ragged edge is the true one.