The 3rd District is composed of

• Anaheim Hills

• Irvine (Excluding Quail Hill, Shady Canyon, and Turtle Ridge)

• Mission Viejo (Skyridge Only)

• Orange

• Tustin

• Villa Park

• Yorba Linda

​​

The unincorporated areas of

• El Modena

• Fairlynn

• North Tustin

  • Cowan Heights​

  • Crawford Canyon

  • Lemon Heights

  • Panorama Heights

• Olive​

• Orange Park Acres

• The Canyons

  • Modjeska Canyon​

  • Santiago Canyon

  • Silverado Canyon

  • Trabuco Canyon (north of Trabuco Creek Road)