COUNTY · 2000 CENSUS
San Mateo County
California · 707,161 residents · 448.606 sq mi
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Part of the San Francisco metro area
The short version
San Mateo County is significantly wealthier than the US average, with a median household income of $70,819. Population has held roughly steady since 1990. 39% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value is $449,900. Poverty is rare here, at 5.8% of residents. Households here earn about 49% more than the California median.
At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.8
US median: 35.2
More educated
39% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth
Population, 1990 – 2024
2024742K
Age distribution, 2000
Under 56.4%(45,374)
5 to 96.6%(46,930)
10 to 146.2%(44,179)
15 to 195.8%(40,803)
20 to 245.8%(40,897)
25 to 3415.9%(112,122)
35 to 4417.4%(122,699)
45 to 5414.5%(102,559)
55 to 649%(63,513)
65 to 746.3%(44,742)
75 to 844.5%(32,000)
85 and over1.6%(11,343)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$70,819
+16%inflation adjusted, since 1990
from $46,437 in 1990
US average: $42,589
1990 – 2024
Section 03
Housing
$449,900
Unchangedinflation adjusted, since 1990
from $340,800 in 1990
US average: $120,530
1990 – 2024
RELATED:See current rent listings in San Mateo County on RentDataNow
Section 04
Race & ethnicity
1990
White, non-Hispanic72%(467,853)
Black5.3%(34,580)
Hispanic / Latino17.4%(113,090)
Asian16.8%(109,309)
2000
White, non-Hispanic49.8%(352,355)
Black3.4%(23,778)
Hispanic / Latino21.9%(154,708)
Asian19.8%(140,313)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry
Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
Mexican14.4%(106,631)
Central American6.2%(46,282)
Salvadoran3%(22,557)
South American1.8%(13,462)
Guatemalan1.6%(12,183)
Nicaraguan1.1%(8,087)
Peruvian0.8%(5,793)
Puerto Rican0.6%(4,483)
Spaniard0.5%(3,659)
Colombian0.4%(3,204)
Honduran0.3%(2,142)
Cuban0.2%(1,447)
+ 10 more hispanic origin groups with data
Chilean0.2%(1,262)
Argentine0.1%(1,058)
Venezuelan0.1%(700)
Panamanian0.1%(666)
Bolivian0.1%(577)
Ecuadorian0.1%(522)
Costa Rican0.1%(413)
Dominican0%(211)
Uruguayan0%(174)
Paraguayan0%(48)
Asian origin
Chinese12.9%(95,682)
Filipino9%(66,869)
Asian Indian3.3%(24,382)
Japanese1.2%(8,866)
Korean1%(7,757)
Vietnamese0.6%(4,799)
Taiwanese0.5%(3,410)
Burmese0.4%(3,111)
Thai0.2%(1,410)
Pakistani0.2%(1,172)
Indonesian0.1%(852)
Cambodian0.1%(749)
+ 12 more asian origin groups with data
Nepalese0.1%(748)
Hmong0.1%(565)
Mongolian0.1%(451)
Sri Lankan0%(261)
Mien0%(152)
Uzbek0%(146)
Bangladeshi0%(139)
Kazakh0%(134)
Malaysian0%(101)
Laotian0%(44)
Singaporean0%(39)
Okinawan0%(7)
Pacific Islander origin
Tongan0.6%(4,322)
Fijian0.4%(2,765)
Samoan0.4%(2,606)
Native Hawaiian0.3%(1,927)
Chamorro0.1%(721)
Marshallese0%(97)
Guamanian0%(38)
Ancestry
Irish6.6%(49,306)
English6%(44,674)
German6%(44,630)
Italian5%(37,107)
American2.8%(21,060)
French1.7%(12,471)
Arab1.3%(9,876)
Scottish1.3%(9,309)
Russian1.3%(9,307)
Polish1.2%(9,062)
Swedish0.8%(5,990)
Portuguese0.7%(5,538)
+ 49 more ancestry groups with data
Norwegian0.7%(5,525)
Iranian0.7%(5,061)
Dutch0.6%(4,726)
Greek0.6%(4,568)
British0.6%(4,367)
Ukrainian0.5%(4,044)
Danish0.4%(3,074)
Brazilian0.4%(3,007)
Scotch-Irish0.4%(2,661)
Hungarian0.3%(2,348)
Welsh0.3%(2,314)
Swiss0.3%(2,139)
Lebanese0.3%(2,122)
Subsaharan African0.3%(1,875)
Armenian0.3%(1,869)
Czech0.3%(1,861)
Austrian0.2%(1,789)
Turkish0.2%(1,502)
Palestinian0.2%(1,460)
Canadian0.2%(1,426)
Egyptian0.2%(1,383)
French Canadian0.2%(1,274)
Romanian0.2%(1,248)
Croatian0.2%(1,193)
West Indian0.1%(1,077)
Lithuanian0.1%(1,057)
Israeli0.1%(816)
Syrian0.1%(789)
Jordanian0.1%(771)
Finnish0.1%(749)
Belgian0.1%(698)
Serbian0.1%(613)
Slovak0.1%(593)
Nigerian0.1%(500)
Iraqi0.1%(476)
Bulgarian0.1%(464)
Jamaican0.1%(455)
Moroccan0.1%(412)
Australian0.1%(398)
Ghanaian0%(214)
Latvian0%(196)
Haitian0%(186)
Slovene0%(169)
Macedonian0%(164)
Ethiopian0%(146)
Kenyan0%(138)
Trinidadian & Tobagonian0%(80)
Barbadian0%(21)
Guyanese0%(9)
Section 05
Education
High school or higher
85.3%
+1.2 ptssince 1990
from 84.1% in 1990
US average: 80.3%
Section 06
Commute & transportation
Section 07
Work & employment
No data for the years selected.
Section 08
People & community
No data for the years selected.
Marital status
Men 15+
Never married32.6%(90,824)
Married57.8%(161,077)
Widowed2.2%(6,166)
Divorced7.3%(20,465)
Women 15+
Never married24.8%(72,171)
Married55%(160,309)
Widowed9.7%(28,297)
Divorced10.6%(30,802)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
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Compare San Mateo County to nearby counties
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Income$129,367+83%
Home value$1,090,100+142%
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SAN MATEO COUNTY VS
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SAN MATEO COUNTY VS
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SAN MATEO COUNTY VS
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Frequently asked
How many people live in San Mateo County, California?
San Mateo County, California has about 707,161 residents according to the 2000 Census.
What is the median household income in San Mateo County, California?
The typical household in San Mateo County, California earns about $70,819 a year. Half of households make more than that, and half make less.
Is San Mateo County, California expensive?
In San Mateo County, California, the median home is worth about $449,900, and the typical rent is about $1,144 a month.
How educated are people in San Mateo County, California?
About 39.0% of adults age 25 and over in San Mateo County, California hold a bachelor's degree or higher.
What is the poverty rate in San Mateo County, California?
About 5.8% of people in San Mateo County, California live below the federal poverty line.
Has San Mateo County, California grown since 1990?
Yes, San Mateo County, California has grown since 1990. The population has added about 57,538 residents, a change of about 9 percent over that period.
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All counties in CaliforniaDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024