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St. Louis County, MO

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St. Louis County, MO
  • Location TypeCounty
  • County SeatClayton, MO
  • Population998,954
  • Land Area (Square Miles) 507.8000
  • Population Density (Per Square Mile) 1967.2000

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Median Age

% Population African American

% Population Hispanic

% Population White

Population Density
(Persons per Square Mile)

Rural-Urban Continuum


Suggested Data Series

TitleLatest YearLatest ValueLatest Rank
Decennial Census Population (County)2010998,95441 of 3170
Decennial Census Population Per Square Mile (County)20101,967.2077 of 3170
Percent of African American Population (County)201824.9%410 of 3131
Percent of Hispanic Population (County)20183.0%2032 of 3139
Persistent Poverty Counties (County)201300 of 0 - 1
Rural-Urban Continuum for Counties (County)201311 of 1 - 9
Unemployment Rate (County)20193.1%2199 of 3140
Death Rate (Per 100,000) (County)20161,003.901955 of 3105
Percent of Adults Physically Inactive (County)201621.9%2603 of 3141
Age-Adjusted Rate of Diabetes per 1,000 Persons (County)20168.901589 of 3141
Medicare Part D Prescription Enrollment Rate (County)201838.2%2554 of 3137
Farmers' Markets (County)20161769 of 2249
Percent of Children Without a Market Within One Mile (County)20156.8%2875 of 3004
Percent of School-age Children in Poverty (County)201814.9%2127 of 3140
Total Public School Expenditures (County)2017$2,222,903,000.0057 of 3123
Number of Public Libraries (County)201710157 of 1287
Average Daily Maximum Heat Index (County)201198.1776 of 3103
Percentage of Days with a Good Air Quality Index (County)201972.4%849 of 1006
Second Highest 1-hour Carbon Monoxide Measurement (County)20100.80181 of 195
Greenhouse Gas Direct Emitting Facilities (County)20185282 of 1227
Average Fine Particulate Matter (County)201111.711666 of 3108
FEMA Public Assistance Grant Dollars Obligated for Disasters (County)2017$1,423,330.7057 of 435
Total Deposits in Banks (County)2016-2017$51,824,888,000.0043 of 3108
Property Taxes as Percent of Income: Five-Year Estimates (County)2006-20103.1%526 of 2773
Percent of Firms Which are Women Owned (County)201235.7%736 of 3093
Manufacturing Establishments with 5 to 9 Employees (County)201813065 of 1961
Inmates Executed, All Races (Cumulative Since 1977) (County)1977-2018197 of 198
Immigrant Households Entering County According to Tax Returns (County)2017-201858216 of 389
Estimated Veteran Population Under 45 Years Old (County)201010,49176 of 3143
Total Planted Acres (County)20196,451.462678 of 3034
Online, Mail Order, and Television Retail Sales in 2009 Dollars (County)2050$16,953,000,000.008 of 2709
Total Retail and Food Service Sales in 2009 Dollars (County)2050$31,687,000,000.0034 of 3108
Earnings in Management of Companies and Enterprises Occupations in 2009 Dollars (County)2050$10,209,000,000.0019 of 2178
Population (County)20501,010,00073 of 3076
Per Capita Total Personal Income (County)2050$358,507.0045 of 3112
Total Employees (County)20501,116,00042 of 3065
Population 18 to 24 Years Old (County)205079,00089 of 2216
African American Male Population 25 Years Old (County)20501,66149 of 2780
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