Rent
Neck and neck
Oklahoma City and Santa Ana are about even on rent.
Oklahoma City
$2,150/mo
Santa Ana
$2,150/mo
What this means for your life
Typical rent in Oklahoma City is $2,150 a month versus $2,150 in Santa Ana, close enough that housing cost should not decide the move by itself. Factor it into your budget alongside salary differences between the two markets, then pick the city that wins the categories you actually live in: safety, schools, pay, or weather.