California's 55th Assembly district

California's 55th State Assembly district
Current assemblymember	Phillip Chen R–Diamond Bar
Population (2010)  • Voting age  • Citizen voting age	461,696 351,337 287,325
Demographics	34.05% White 2.68% Black 29.99% Latino 31.91% Asian 0.37% Native American 0.18% Hawaiian/Pacific Islander 0.25% other 0.57% remainder of multiracial
Registered voters	237,543
Registration	39.02% Republican 31.00% Democratic 25.69% No party preference

California's 55th State Assembly district is one of 80 California State Assembly districts. It is currently represented by Republican Phillip Chen of Diamond Bar.

The district straddles the intersection of three counties and several distinct regions. The Los Angeles County portion includes the southeastern San Gabriel Valley, the San Bernardino County portion contains the northernmost part of the Santa Ana Mountains, and the Orange County portion is marked by canyons. The district is relatively affluent and primarily suburban.