St. Charles County MO Information


St. Charles County Subdivisions

St. Charles County MO Data & Demographics (As of July 1, 2016)


Total Population 385,840
Population in Households 380,414
Population in Familes 323,021
Population in Group Qrtrs 5,426
Population Density1 689
Diversity Index2 26


Total Households 144,600
Average Household Size 2.63
Family Households 104,285
Average Family Size 3


Total Housing Units 151,839 (100%)
Owner Occupied HU 114,721 (75.6%)
Renter Occupied HU 29,879 (19.7%)
Vacant Housing Units 7,239 ( 4.8%)
Median Home Value $210,363
Average Home Value $238,051


Median Household Income $73,330
Average Household Income $89,044
Per Capita Income $33,645
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.09% 1.19%
Households 1.19% 1.26%
Families 1.06% 1.18%
Median Household Income   1.99%
Per Capita Income   1.96%
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.


St. Charles County MO - Peer Comparisons by Rank and Percentile

The table below compares St. Charles County to the other 115 counties and county equivalents 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 # 3 98th
Population Density1 # 4 97th
Diversity Index2 # 27 77th
Median Household Income # 1 100th
Per Capita Income # 3 98th

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