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San Mateo County, CA

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San Mateo County, CA
  • Location TypeCounty
  • County SeatRedwood City, CA
  • Population718,451
  • Land Area (Square Miles) 448.4100
  • Population Density (Per Square Mile) 1602.2000

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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)2010718,45183 of 3170
Decennial Census Population Per Square Mile (County)20101,602.2099 of 3170
Percent of African American Population (County)20182.7%1529 of 3131
Percent of Hispanic Population (County)201824.3%322 of 3139
Persistent Poverty Counties (County)201300 of 0 - 1
Rural-Urban Continuum for Counties (County)201311 of 1 - 9
Unemployment Rate (County)20192.0%3083 of 3140
Death Rate (Per 100,000) (County)2016619.402960 of 3105
Percent of Adults Physically Inactive (County)201615.6%3082 of 3141
Age-Adjusted Rate of Diabetes per 1,000 Persons (County)20165.802640 of 3141
Medicare Part D Prescription Enrollment Rate (County)201830.4%2934 of 3137
Farmers' Markets (County)20162343 of 2249
Percent of Children Without a Market Within One Mile (County)20152.5%2983 of 3004
Percent of School-age Children in Poverty (County)20186.4%3062 of 3140
Total Public School Expenditures (County)2017$1,774,122,000.0083 of 3123
Number of Public Libraries (County)20178222 of 1287
Average Daily Maximum Heat Index (County)201183.682908 of 3103
Percentage of Days with a Good Air Quality Index (County)201991.4%345 of 1006
Second Highest 1-hour Carbon Monoxide Measurement (County)20192.0043 of 165
Greenhouse Gas Direct Emitting Facilities (County)20185282 of 1227
Average Fine Particulate Matter (County)20118.013085 of 3108
FEMA Public Assistance Grant Dollars Obligated for Disasters (County)2017$1,377,986.5259 of 435
Total Deposits in Banks (County)2016-2017$38,477,689,000.0056 of 3108
Property Taxes as Percent of Income: Five-Year Estimates (County)2006-20104.1%210 of 2773
Percent of Firms Which are Women Owned (County)201235.2%808 of 3093
Manufacturing Establishments with 5 to 9 Employees (County)201812766 of 1961
Inmates Executed, All Races (Cumulative Since 1977) (County)1977-20171233 of 233
Immigrant Households Entering County According to Tax Returns (County)2017-201828295 of 389
Estimated Veteran Population Under 45 Years Old (County)20104,378255 of 3143
Total Planted Acres (County)20195,380.732723 of 3034
Online, Mail Order, and Television Retail Sales in 2009 Dollars (County)2050$4,739,000,000.0050 of 2709
Total Retail and Food Service Sales in 2009 Dollars (County)2050$19,060,000,000.0071 of 3108
Earnings in Management of Companies and Enterprises Occupations in 2009 Dollars (County)2050$2,334,000,000.0091 of 2178
Population (County)2050932,00087 of 3076
Per Capita Total Personal Income (County)2050$499,397.009 of 3112
Total Employees (County)2050774,00073 of 3065
Population 18 to 24 Years Old (County)205067,000118 of 2216
African American Male Population 25 Years Old (County)205061772 of 2780
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