Ontario, CA zip codes
Ontario, California has 4 zip codes (3 residential, 1 PO box or single-organization). Most of it is in San Bernardino County. Together these zip codes are home to about 183K people.
Zip codes
4
Population
183K
All zips combined
Largest zip
91762
64,235 residents
Income range
$82K–$101K
Median by zip