ZIP code
63366
O Fallon, MO
63366 covers O Fallon in St. Charles County, with 54,449 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 63366. Methodology
ZIP code map of 63366
About ZIP code 63366
Acceptable cities: Cottleville, Dardenne Pr, Dardenne Prairie, Saint Paul, Saint Peters
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 63366. Not ACS. Methodology
People in 63366
Race
- White44,994
- Black or African American2,905
- American Indian or Alaska Native140
- Asian1,032
- Native Hawaiian and Pacific Islander74
- Other race924
- Two or more races3,792
Hispanic or Latino (any race): 2,314
Age
- Under 106,797
- 10 to 197,830
- 20 to 295,928
- 30 to 397,544
- 40 to 497,024
- 50 to 597,266
- 60 to 695,912
- 70 to 793,659
- 80 and older1,901
Income and housing in 63366
Education
- High school graduate94.6%
- Bachelor's degree34.3%
- Graduate degree12.0%
Places covering 63366
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- O'Fallon78.2%
- St. Paul5.6%
- Wentzville3.9%
- St. Peters0.8%
- Josephville0.2%
- Dardenne Prairie0.1%
- Lake St. Louis0.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- St. Charles County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
11.2% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 63366
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 47,592 | |
| 2006 | 44,910 | |
| 2007 | 46,939 | |
| 2008 | 45,944 | |
| 2009 | 46,104 | |
| 2010 | 46,164 | |
| 2011 | 45,701 | 46,485 |
| 2012 | 47,464 | 47,090 |
| 2013 | 47,697 | 47,690 |
| 2014 | 48,249 | 47,660 |
| 2015 | 48,162 | 48,250 |
| 2016 | 48,371 | 48,810 |
| 2017 | 49,077 | 49,380 |
| 2018 | 49,621 | 49,770 |
| 2019 | 50,402 | 48,570 |
| 2020 | 50,541 | 49,720 |
| 2021 | 51,995 | 48,650 |
| 2022 | 52,746 | 49,250 |
| 2023 | 54,449 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 63366
12 nearest ZIP centroids (any distance)
- 63369Old Monroe6.2 miPop 2,984 · Income $94,079
- 63367Lake Saint Louis6.9 miPop 27,893 · Income $134,932
- 63376Saint Peters7.2 miPop 74,876 · Income $94,921
- 63368O Fallon7.3 miPop 45,862 · Income $118,811
- 63385Wentzville8.2 miPop 50,420 · Income $111,851
- 62036Golden Eagle8.4 miPop 531 · Income $103,750
- 63389Winfield10.2 miPop 7,159 · Income $92,646
- 63362Moscow Mills10.6 miPop 9,247 · Income $85,300
- 62013Brussels10.6 miPop 425 · Income $71,250
- 63304Saint Charles10.7 miPop 43,389 · Income $114,124
- 63303Saint Charles12.7 miPop 46,627 · Income $98,031
- 63348Foristell12.8 miPop 10,207 · Income $106,458
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 63366, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 63366 FAQ
- What city is ZIP code 63366 in?
- 63366 is in O Fallon, MO.
- What county is 63366 in?
- 63366 is in St. Charles County.
- What is the median household income in 63366?
- The median household income in 63366 is $98,237.
- Which ZIP codes are near 63366?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 63366.