California's 23rd Senate district

California's 23rd State Senate district
Current senator	Mike Morrell R–Rancho Cucamonga
Population (2010)  • Voting age  • Citizen voting age	933,807 681,524 563,579
Demographics	45.51% White 7.77% Black 37.96% Latino 6.47% Asian 1.10% Native American 0.35% Hawaiian/Pacific Islander 0.24% other 0.60% remainder of multiracial
Registered voters	474,302
Registration	38.10% Republican 35.47% Democratic 20.87% No party preference

California's 23rd State Senate district is one of 40 California State Senate districts. It is currently represented by Republican Mike Morrell of Rancho Cucamonga.

The district encompasses a wide arc of the Inland Empire, circling clockwise from Rancho Cucamonga in the northwest to Menifee in the south. It also includes several resort communities in the San Bernardino Mountains and a sliver of the High Desert.