San Mateo County, California Population 2018

San Mateo County, California's estimated population is 771,410 with a growth rate of 2.21% in the past year according to the most recent United States census data. San Mateo County, California is the 14th largest county in California.

Year Population Growth Growth Rate
2017771,41016,6622.21%
2016754,748-14,813-1.92%
2016769,5612,7820.36%
2015766,7797,6231.00%
2014759,1568,8111.17%
2013750,3459,7011.31%
2012740,64411,6221.59%
2011729,0229,1231.27%
2010719,89970,27610.82%
1990649,62362,29410.61%
1980587,32931,0955.59%
1970556,234111,84725.17%
1960444,387208,72888.57%
1950235,659123,877110.82%
1940111,78234,37744.41%
193077,40540,624110.45%
192036,78110,19638.35%
191026,58514,491119.82%
190012,0942,00719.90%
189010,0871,41816.36%
18808,6692,03430.66%
18706,6353,421106.44%
18603,2140.00%

San Mateo County, California Population Growth

Population Data via

Population by Race

Race Population
White404,461
Asian203,926
Some Other Race76,854
Two or More Races37,919
Black or African American18,533
Native Hawaiian and Other Pacific Islander10,615
American Indian and Alaska Native2,440

Race Data via US Census (2016 ACS 5-Year Survey)

San Mateo County, California Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

San Mateo County, California Median Age

39.5


Total

38.1


Male

40.8


Female

San Mateo County, California Adults

There are 592,477 adults, (110,193 of which are seniors) in San Mateo County, California.

San Mateo County, California Age Dependency

56.7

Age Dependency Ratio

22.9

Old Age Dependency Ratio

33.7

Child Dependency Ratio

San Mateo County, California Sex Ratio

Female

383,203

50.77%

Male

371,545

49.23%

San Mateo County, California Households and Families

San Mateo County, California Renter vs Owner Occupied by Household Type

San Mateo County, California Household Types

Type Owner Renter
Married69.5%30.5%
All59.1%40.9%
Female48.1%51.9%
Non Family46.9%53.1%
Male46%54%

59.1%

Rate of Home Ownership

San Mateo County, California Households by Type

Type Count Average Size Owned
All261,0102.8559.1
Married140,5833.4969.5
Non Family80,6031.3846.9
Female27,3153.6148.1
Male12,5093.6346

3.39

Average Family Size

2.85

Average Household Size

5.1%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

San Mateo County, California Households

San Mateo County, California Education

San Mateo County, California Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade35,3216.60%
9th to 12th Grade25,5774.78%
High School Graduate85,39215.95%
Some College97,39018.19%
Associates Degree39,8617.44%
Bachelors Degree148,54727.74%
Graduate Degree103,41419.31%

San Mateo County, California Educational Attainment by Race

Name Total High School Bachelors
White236,160228,362135,077
Asian153,739141,05387,252
Hispanic113,67376,24719,779
Other Race46,50129,4146,347
Multiple Races15,82914,5566,762
Black13,85512,3353,061
Islander6,6965,7541,210
Native American1,6221,191291

The highest rate of high school graduation is among white people with a rate of 96.70%.

The highest rate of bachelors degrees is among white people with a rate of 57.20%.

San Mateo County, California Earnings by Educational Attainment

Name Average Male Female
Overall$51,594$58,781$45,646
Less Than High School$23,526$26,898$19,105
High School Grad$32,216$37,210$27,528
Some College$42,765$48,108$38,657
Bachelors Degree$65,803$78,652$57,112
Graduate Degree$103,766$126,790$82,378

$51,594

Average Earnings

$58,781

Average Male

$45,646

Average Female

San Mateo County, California Language

San Mateo County, California Language by Age

San Mateo County, California Language

53.53% of San Mateo County, California residents speak only English, while 46.47% speak other languages. The largest non-English language is Spanish, which is spoken by 19.69% of the population.

San Mateo County, California Poverty

San Mateo County, California Poverty by Race

Name Total In Poverty Poverty Rate
Hispanic187,59225,49413.59%
White302,99114,7074.85%
Other75,92711,73415.45%
Asian202,92611,4065.62%
Black17,8572,97316.65%
Multiple37,4042,6997.22%
Islander10,5311,10910.53%
Native2,37439816.76%

7.68%

Overall Poverty Rate

7.02%

Male Poverty Rate

8.32%

Female Poverty Rate

Poverty in San Mateo County, California

The race most likely to be in poverty in San Mateo County, California is Native, with 16.76% below the poverty level.

The race least likely to be in poverty in San Mateo County, California is White, with 4.85% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.53%. Among those working part-time, it was 9.18%, and for those that did not work, the poverty rate was 14.26%.

San Mateo County, California Poverty Rate by Education

Name Poverty
Less Than High School16.39%
High School9.66%
Some College6.06%
Bachelors or Greater3.51%

San Mateo County, California Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed20.86%
Male Unemployed20.62%
Female Employed4.01%
Male Employed3.55%

San Mateo County, California Income

San Mateo County, California Income by Household Type

Name Median Mean
Households$98,546$141,122
Families$114,857$162,078
Married Families$134,531$183,001
Non Families$62,621$86,569

San Mateo County, California Marital Status

San Mateo County, California Marital Status

Marriage Rates

52.0%

Overall Marriage Rate

53.9%

Male Marriage Rate

50.2%

Female Marriage Rate

San Mateo County, California Married by Age and Sex

San Mateo County, California Marriage

The age group where males are most likely to be married is 55To64, while the female age group most likely to be married is 35To44.

San Mateo County, California Marital Status by Race

San Mateo County, California Veterans

San Mateo County, California Veterans by War

27,587

Number of Veterans

25,862

Male Veterans

1,725

Female Veterans

Name Veterans
Vietnam9,178
Korea3,889
First Gulf War3,662
Second Gulf War3,091
World War II2,579

San Mateo County, California Veterans by Age

Name Veterans
75+8,825
65 to 747,029
35 to 545,527
55 to 644,184
18 to 342,022

San Mateo County, California Veterans by Race

Name Veterans % of Total
White20,7846.41%
Asian3,2341.93%
Hispanic2,7092.02%
Black1,81011.65%
Other8151.47%
2 or More6653.33%
Hawaiian1612.06%
Indian1186.04%

San Mateo County, California Veterans by Education

5.09%

Veteran Poverty Rate

25.21%

Veteran Disability Rate

San Mateo County, California Employment Status

San Mateo County, California Employment by Age

68.9%

Labor Force Participation

65%

Employment Rate

5.6%

Unemployment Rate

San Mateo County, California Employment by Race

San Mateo County, California Employment by Education

Population of Cities in San Mateo County, California

City 2010 Census 2016 Estimated Growth Growth Rate
Daly City10114810647253245.26%
San Mateo9720710395967526.95%
Redwood City7680284950814810.61%
South San Francisco636646698033165.21%
San Bruno410534295719044.64%
Pacifica372953906217674.74%
Foster City3056734175360811.80%
Menlo Park320323388818565.79%
Burlingame288063030114955.19%
San Carlos284062979713914.90%
East Palo Alto281552968415295.43%
Belmont258442708112374.79%
Millbrae215302266111315.25%
Half Moon Bay1132412697137312.12%
Hillsborough10825114316065.60%
Atherton692072072874.15%
Woodside528755512644.99%
Brisbane428246934119.60%
Portola Valley435345972445.61%
Colma14471510634.35%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990