California's 45th congressional district is based in Orange County and includes the communities of Irvine, Tustin, North Tustin, Villa Park, Laguna Hills, Laguna Woods, Lake Forest, Rancho Santa Margarita, Mission Viejo, the Canyons and parts of Anaheim Hills, Coto de Caza and Orange.
As of July 2018 there are 403,772 registered voters in the district. Of those registered voters, 37.9% are registered Republican, 30.5% are registered Democrat, 27.5% are registered No Party Preference and 4.1% are registered with another party. For up to date voter registration statistics please visit the Orange County Registrar of Voters.
Of the people living in this area, Census figures based on 2012- 2016 American Community Survey updates show: 63.22% are White, 1.91% are African American, 18.44% are Hispanic, 23.5% are Asian-American, 0.23% are either Native Hawaiian or Pacific Islander, 0.27% are American Indian or Alaskan Native, 6.38% are of "some other race" and 4.49% are of two or more races.
The median household income for the district is $93,995 as estimated for 2012-2016 by the Census' American Community Survey.
Data from the U.S. Census Bureau for 2012-2016 indicates that 213,950 people or 28.54% of the population living in this area were "foreign born". The Census defines foreign born as anyone who is not a U.S. citizen at birth.