Saint Charles, MO 63304 ZIP Code Profile


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ZIP Code 63304: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint Charles, MO 63304

Acceptable Alternative
Cottleville, MO 63304
Saint Peters, MO 63304
Weldon Spring, MO 63304

Not Acceptable, USPS
St Peters, MO 63304
Weldon Spring Heights, MO 63304

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 797
  • Single Family Addresses: 14,741
  • Multi-Family Addresses: 407
  • County: St. Charles County
  • Centroid: Latitude 38.733, Longitude -90.622
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

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63304 ZIP Code Map

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Saint Charles, MO 63304 Data & Demographics (As of July 1, 2016)


Total Population 43,542
Population in Households 43,398
Population in Familes 38,576
Population in Group Qrtrs 144
Population Density1 1,019
Diversity Index2 23


Total Households 15,556
Average Household Size 2.79
Family Households 12,234
Average Family Size 3


Total Housing Units 16,083 (100%)
Owner Occupied HU 13,569 (84.4%)
Renter Occupied HU 1,987 (12.4%)
Vacant Housing Units 527 ( 3.3%)
Median Home Value $226,680
Average Home Value $265,897


Median Household Income $87,976
Average Household Income $106,300
Per Capita Income $38,045
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.84% 1.01%
Households 0.99% 1.09%
Families 0.88% 1.02%
Median Household Income   1.93%
Per Capita Income   1.79%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Saint Charles, MO 63304 - Peer Comparisons by Rank and Percentile

The table below compares 63304 to the other 1,011 ZIP Codes in Missouri by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 17 98th
Population Density1 # 123 88th
Diversity Index2 # 220 78th
Median Household Income # 21 98th
Per Capita Income # 39 96th

Additional comparisons and rankings can be made with a VERY EASY TO USE Missouri Census Data Comparison Tool.

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