California's 1st State Assembly district is one of 80 California State Assembly districts.

It is currently represented by Republican Heather Hadwick of Alturas.

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.

(San Diego) April 3, 1850[6]