[4] District 1 comprises the communities of Chula Vista, National City, Imperial Beach, San Ysidro, Otay Mesa, Barrio Logan, Logan Heights, East Village, Golden Hill, Grant Hill, Lincoln Park, Memorial, Mount Hope, Mountain View, Nestor, Sherman Heights, Southcrest, Stockton, Bonita, Sunnyside, Lincoln Acres, La Presa and parts of Spring Valley.

Incumbent Nora Vargas, a Democrat, and Alejandro Galicia, a Republican, automatically advanced from the March 2024 primary, since no other candidates qualified to run.

[5] District 2 comprises the cities of El Cajon, Poway, Santee, as well as over 40 unincorporated communities and tribes in eastern San Diego County.

[7] Incumbent Joel Anderson, a Republican, and Gina Jacobs, a Democrat, automatically advanced from the March 2024 primary, since no other candidates qualified to run.

Incumbent Terra Lawson-Remer, a Democrat, and former mayor of San Diego Kevin Faulconer, a Republican, automatically advanced from the March 2024 primary, since no other candidates qualified to run.