Rancho Cucamonga, CA zip codes
Rancho Cucamonga, California has 5 zip codes (4 residential, 1 PO box or single-organization). Most of it is in San Bernardino County. Together these zip codes are home to about 176K people.
Zip codes
5
Population
176K
All zips combined
Largest zip
91730
71,613 residents
Income range
$92K–$143K
Median by zip