California's 4th State Assembly district is one of 80 California State Assembly districts. It is currently represented by Democrat Cecilia Aguiar-Curry of Winters.
The district encompasses much of the southern and western Sacramento Valley and Wine Country. The Coast Ranges run down the western half of the district.
Colusa County â 100%
Lake County â 100%
Napa County â 100%
Sonoma County â 6.20%
Yolo County â 100%
Due to redistricting, the 4th district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission.