O'Fallon, MO ZIP codes
1 ZIP codes lie mostly inside O'Fallon and 3 more cross into it. 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 O'Fallon
| ZIP | Share in city | Residents | Median age | Household income | Home value | Rent | Homeowners |
|---|---|---|---|---|---|---|---|
| 63368 | 55% | 46,966 | 38.0 | $124,297 | $349,200 | $1,482 | 82% |
ZIP codes partly in O'Fallon
| ZIP | Share in city | Residents | Median age | Household income | Home value | Rent | Homeowners |
|---|---|---|---|---|---|---|---|
| 63366 | 23% | 54,769 | 40.4 | $100,621 | $304,500 | $1,302 | 82% |
| 63367 | 13% | 29,725 | 39.5 | $137,648 | $409,100 | $1,634 | 82% |
| 63376 | 5% | 74,962 | 40.9 | $96,393 | $275,400 | $1,349 | 81% |
"Share in city" is the part of each ZIP code's land area inside O'Fallon 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 O'Fallon?
1 ZIP codes lie mostly inside O'Fallon, and 3 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 O'Fallon ZIP code has the highest income?
63368 has the highest median household income, $124,297, and 63368 the lowest, $124,297 (ACS 2020-2024, ZIP codes with 1,000+ residents).
Where is rent cheapest in O'Fallon?
By ZIP code, median gross rent is lowest in 63368 ($1,482 a month) and highest in 63368 ($1,482).
Compare the whole city with others on the O'Fallon profile, or see O'Fallon population by year.