California’s 45th district is located entirely within Orange County in Southern California. It includes all of Irvine, Tustin, North Tustin, Villa Park, Laguna Hills, Lake Forest, and Rancho Santa Margarita, as well as parts of Anaheim, Orange, Laguna Woods, Mission Viejo, and Trabuco Canyon.

The 45th district has an estimated population of just over 791,000 people. It is a diverse, rapidly growing and changing district – more than 1 in 8 residents are new movers to the district in the last year.