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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

Zip Code 63366, O Fallon, MO

ZIP Code 63366 Details

Zip Code:63366
City:O Fallon
State:MO [Missouri]
Multi County:No
City Alias(es):O Fallon
Dardenne Pr
Dardenne Prairie
Saint Paul
Saint Peters
City Alias(es) To Avoid Using:Dardenne
St Peters
Area Code:636
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:437 ft
State FIPS:29
County FIPS:183
Division:West North Central
Intro Date:<2004-10

ZIP Code 63366 2010 Census Demographics

Current Population:56,489
2010 Population:46,175
Households per ZIP Code:17,013
Average House Value:$229,000
Avg. Income Per Household:$84,414
Persons Per Household:2.71
White Population:43,032
Black Population:2,031
Hispanic Population:1,301
Asian Population:1,009
American Indian Population:350
Hawaiian Population:67
Other Population:526
Male Population:22,606
Female Population:23,569
Median Age:35.60 years
Male Median Age:34.60 years
Female Median Age:36.60 years

ZIP Code 63366 Other Demographics

# Residential Mailboxes:20,845
# Business Mailboxes:1,083
Total Delivery Receptacles:22,434
Number of Businesses:1144
1st Quarter Payroll:$394,276,000
Annual Payroll:$1,182,582,000
# of Employees:21,307
Water Area:1.329 sq mi
Land Area:69.284 sq mi
118th Congressional District:02|03
118th Congressional Land Area:465.76|6851.54 sq mi
Single Family Delivery Units:16,632
Multi Family Delivery Units:1,185
# Residential Mailboxes:20,845
# Business Mailboxes:1,083
Total Delivery Receptacles:22,434

ZIP Code 63366 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 9,590 9,870 +280
Retired Workers: 6,880 7,175 +295
Disabled Workers: 1,265 1,230 -35
Widow(er)s and Parents: 590 570 -20
Spouses: 255 280 +25
Children: 600 615 +15
65+: 7,190 7,460 +270
Monthly Benefits - All: $13,993,000 $14,792,000 +$799,000
Monthly Benefits - Retired Workers: $10,675,000 $11,444,000 +$769,000
Monthly Benefits - Widow(ers): $905,000 $901,000 ($4,000)

ZIP Code 63366 Statistical Areas

CBSA: 41180
CBSA Name: St. Louis, MO-IL
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:2,812,896
CBSA Division Population:0
MSA: 7040
MSA Name: St. Louis, MO-IL MSA
PMSA Name: 
City State Key:W17417
Preferred Last Line Key:W17417
63365: Previous ZIP Code
Next ZIP Code: 63367


  1. U.S. Postal Service [Last Updated: 3/1/2023],
  2. Internal Data Creation [Last Updated: 3/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 3/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],