Decades ago I lived in Orange County—first Newport Beach and Mission Viejo.
I left because I wanted to have a nice single family home with lots of land.
I have that now.
(and yes we have winter :-) )
“Mission Viejo” was presumably named because of Old Mission San Juan Capistrano being nearby. But whoever coined the name didn’t know Spanish. “Mision” in Spanish is feminine—”viejo” is masculine.