Ontario, CA ZIP codes
3 ZIP codes lie mostly inside Ontario. For each one: residents, median age, household income, home value, rent and homeownership, so you can see how different parts of the city compare.
ZIP codes mostly in Ontario
| ZIP | Share in city | Residents | Median age | Household income | Home value | Rent | Homeowners |
|---|---|---|---|---|---|---|---|
| 91761 | 100% | 62,935 | 34.7 | $100,578 | $635,000 | $2,136 | 69% |
| 91762 | 95% | 64,235 | 34.1 | $83,850 | $606,000 | $1,801 | 58% |
| 91764 | 100% | 56,270 | 31.8 | $81,762 | $565,800 | $2,181 | 45% |
"Share in city" is the part of each ZIP code's land area inside Ontario city limits. Figures describe the whole ZIP code. Sources: Census Bureau 2020 ZIP Code Tabulation Areas (which closely follow USPS ZIP codes) and ACS 2020-2024 5-year estimates. Small ZIP codes have wide margins of error; "n/a" means the Census Bureau did not publish a value. Click a column to sort.
Frequently asked questions
How many ZIP codes are in Ontario?
3 ZIP codes lie mostly inside Ontario, and 0 more are partly in the city, by the Census Bureau's 2020 ZIP Code Tabulation Areas. PO box and single-building ZIP codes have no residents and are not listed.
Which Ontario ZIP code has the highest income?
91761 has the highest median household income, $100,578, and 91764 the lowest, $81,762 (ACS 2020-2024, ZIP codes with 1,000+ residents).
Where is rent cheapest in Ontario?
By ZIP code, median gross rent is lowest in 91762 ($1,801 a month) and highest in 91764 ($2,181).
Compare the whole city with others on the Ontario profile, or see Ontario population by year.