California's 1st State Assembly district is one of 80 California State Assembly districts. It is currently represented by of .
The district stretches along the eastern edge of the state from the Oregon border to Lake Tahoe, wrapping around the Sacramento Valley along the northern Sierra Nevada. The district is primarily rural and heavily Republican and at 27, 276 square miles, is the largest assembly district by area in California.
All of Alpine County
Amador County â part
El Dorado County â part
All of Lassen County
All of Modoc County
All of Nevada County
Placer County â part
All of Plumas County
All of Shasta County
All of Sierra County
All of Siskiyou County
Due to redistricting, the 1st district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission.
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