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ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2021

Zip Code 63304, Saint Charles, MO

ZIP Code 63304 Details

Zip Code:63304
City:Saint Charles
State:MO [Missouri]
Multi County:No
City Alias(es):Saint Charles
Saint Peters
Weldon Spring
City Alias(es) To Avoid Using:St Peters
Weldon Spring Heights
Area Code:636
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:613 ft
State FIPS:29
County FIPS:183
Division:West North Central
Intro Date:<2004-10

ZIP Code 63304 2010 Census Demographics

Current Population:44,964
2010 Population:40,336
Households per ZIP Code:14,277
Average House Value:$244,400
Avg. Income Per Household:$99,691
Persons Per Household:2.82
White Population:37,643
Black Population:1,664
Hispanic Population:860
Asian Population:1,136
American Indian Population:247
Hawaiian Population:22
Other Population:326
Male Population:19,826
Female Population:20,510
Median Age:39.20 years
Male Median Age:38.30 years
Female Median Age:39.90 years

ZIP Code 63304 Other Demographics

# Residential Mailboxes:15,945
# Business Mailboxes:827
Total Delivery Receptacles:20,736
Number of Businesses:913
1st Quarter Payroll:$140,126,000
Annual Payroll:$567,455,000
# of Employees:12,655
Water Area:2.969 sq mi
Land Area:41.885 sq mi
113th Congressional District:02
113th Congressional Land Area:465.76 sq mi
Single Family Delivery Units:13,704
Multi Family Delivery Units:658
# Residential Mailboxes:15,945
# Business Mailboxes:827
Total Delivery Receptacles:20,736

ZIP Code 63304 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 7,210 7,560 +350
Retired Workers: 5,480 5,800 +320
Disabled Workers: 695 675 -20
Widow(er)s and Parents: 390 400 +10
Spouses: 265 290 +25
Children: 380 395 +15
65+: 5,705 6,065 +360
Monthly Benefits - All: $11,305,000 $12,163,000 +$858,000
Monthly Benefits - Retired Workers: $9,071,000 $9,888,000 +$817,000
Monthly Benefits - Widow(ers): $641,000 $658,000 +$17,000

ZIP Code 63304 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:W17756
Preferred Last Line Key:W17756
63303: Previous ZIP Code
Next ZIP Code: 63330


  1. U.S. Postal Service [Last Updated: 10/1/2021],
  2. Internal Data Creation [Last Updated: 10/1/2021],
  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: 10/1/2021],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],