The 25th Senate District is comprised of the following cities and communities:

Los Angeles County:

• Altadena
• Bradbury
• Burbank
• Claremont
• Duarte
• Glendale
• Glendora
• La Cañada Flintridge
• La Crescenta-Montrose
• La Verne
• City of Los Angeles
  • Griffith Park
  • Lake View Terrace (Eastern)
  • Los Feliz
  • Sunland-Tujunga
• Los Angeles River—Glendale Narrows section
• Monrovia
• Montrose
• Pasadena
• San Dimas
• San Gabriel Mountains
• San Marino
• San Rafael Hills
• Santa Monica Mountains (Eastern)
• Sierra Madre
• South Pasadena
• Verdugo Mountains

San Bernardino County

• Upland