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San Mateo County, California

Export report

At a glance

Market profile

Population
742,340
Households
264,419
Average household size
2.76
Median age
40.9 years
Median household income
$158,855
Housing units
287,184
Population comparison
2020 Census764,442
2024 estimate742,340
Change−2.9%

People

Who lives here

Population
742,340
Median age
40.9 years
Male
369,875
Female
372,465
Median age by sex
Male median age
39.6 years
Female median age
42.2 years
Age by sexPopulation distribution
19,405Under 518,486
55,0695–1752,135
28,28618–2426,154
55,05825–3450,591
55,28035–4453,540
50,05545–5449,589
47,50755–6448,943
59,21565+73,027
Age by sex values
CategoryMaleFemale
Under 519,40518,486
5–1755,06952,135
18–2428,28626,154
25–3455,05850,591
35–4455,28053,540
45–5450,05549,589
55–6447,50748,943
65+59,21573,027
View detailed source bins
5–17
Male
5–9
19,677
10–14
21,977
15–17
13,415
Female
5–9
18,634
10–14
20,717
15–17
12,784
18–24
Male
18–19
8,019
20
3,697
21
3,483
22–24
13,087
Female
18–19
7,030
20
3,259
21
3,069
22–24
12,796
25–34
Male
25–29
25,191
30–34
29,867
Female
25–29
23,178
30–34
27,413
35–44
Male
35–39
29,199
40–44
26,081
Female
35–39
26,980
40–44
26,560
45–54
Male
45–49
24,838
50–54
25,217
Female
45–49
24,439
50–54
25,150
55–64
Male
55–59
24,588
60–61
9,562
62–64
13,357
Female
55–59
25,561
60–61
9,342
62–64
14,040
65+
Male
65–66
8,480
67–69
11,979
70–74
14,759
75–79
9,882
80–84
7,316
85+
6,799
Female
65–66
8,380
67–69
12,710
70–74
18,311
75–79
13,420
80–84
8,800
85+
11,406
Detailed source values for Age by sex
RaceMutually exclusive counts
White alone
280,90437.8%
Asian alone
232,97131.4%
Two or more races
107,20014.4%
Some other race
88,60211.9%
Black alone
15,7852.1%
Native Hawaiian / Pacific Islander
8,4441.1%
American Indian / Alaska Native
8,4341.1%
Residents: 742,340.

Derived from published counts

Race values
CategoryValue
White alone280,904
Asian alone232,971
Two or more races107,200
Some other race88,602
Black alone15,785
Native Hawaiian / Pacific Islander8,444
American Indian / Alaska Native8,434

Ethnicity

Hispanic or Latino
184,940
White, not Hispanic
257,595

Hispanic or Latino ethnicity and White, not Hispanic are reported separately from race.

Households

Household structure

Family households
179,491
Married-couple share
78.8%
Derived from published counts
With children
44.4%
Derived from published counts
Household sizeShare of households
64,48124.4%
1 person
85,21032.2%
2 people
47,94118.1%
3 people
40,81315.4%
4 people
25,9749.8%
5+ people
View detailed source bins
5+ people
5 People
15,239
6 People
6,145
7 Plus People
4,590
Detailed source values for Household size
Household size values
CategoryValue
1 person64,481
2 people85,210
3 people47,941
4 people40,813
5+ people25,974
Family householdsEach subgroup is compared with its parent
All family households179,491
Married-couple families141,51778.8% of family households
With children
58,03141%
Without children
83,48659%
Other families37,97421.2% of family households
Male householder
12,21232.2%
Female householder
25,76267.8%
Family households values
GroupValueShare of parent
All family households179,491Not applicable
Married-couple families141,51778.8%
With children58,03141%
Without children83,48659%
Other families37,97421.2%
Male householder12,21232.2%
Female householder25,76267.8%

Income

Income distribution

Median household
$158,855
Median family
$189,508
Per capita
$84,288
Household incomeShare of households
18,6457.1%
Under $25k
22,2648.4%
$25–49k
23,0748.7%
$50–74k
22,3058.4%
$75–99k
39,91515.1%
$100–149k
32,58312.3%
$150–199k
105,63339.9%
$200k+
View detailed source bins
Under $25k
Under $10,000
7,358
$10,000–$14,999
4,272
$15,000–$19,999
3,231
$20,000–$24,999
3,784
$25–49k
$25,000–$29,999
4,196
$30,000–$34,999
3,757
$35,000–$39,999
4,353
$40,000–$44,999
5,577
$45,000–$49,999
4,381
$50–74k
$50,000–$59,999
8,797
$60,000–$74,999
14,277
$100–149k
$100,000–$124,999
19,598
$125,000–$149,999
20,317
Detailed source values for Household income
Household income values
CategoryValue
Under $25k18,645
$25–49k22,264
$50–74k23,074
$75–99k22,305
$100–149k39,915
$150–199k32,583
$200k+105,633

Education

Attainment and marital status

Education universe
542,805
High school or higher
90.2%
Derived from published counts
Bachelor’s or higher
53.7%
Derived from published counts
Educational attainmentAttainment distribution
32,6286.0%
Less than 9th grade
20,3143.7%
Grades 9–12, no diploma
79,64614.7%
High school or equivalent
82,18815.1%
Some college, no degree
36,6916.8%
Associate degree
160,49429.6%
Bachelor’s degree
130,84424.1%
Graduate or professional
View detailed source bins
Less than 9th grade
No Schooling
16,434
Nursery School
251
Kindergarten
348
First Grade
221
Second Grade
784
Third Grade
1,370
Fourth Grade
1,185
Fifth Grade
1,595
Sixth Grade
6,681
Seventh Grade
1,181
Eighth Grade
2,578
Grades 9–12, no diploma
Ninth Grade
3,765
Tenth Grade
3,016
Eleventh Grade
2,635
Twelfth No Diploma
10,898
High school or equivalent
Regular High School Diploma
69,593
Ged Or Alternative Credential
10,053
Some college, no degree
Some College Under 1 Year
27,287
Some College 1 Or More Years No Degree
54,901
Graduate or professional
Masters Degree
82,171
Professional School Degree
22,346
Doctorate Degree
26,327
Detailed source values for Educational attainment
Educational attainment values
CategoryValue
Less than 9th grade32,628
Grades 9–12, no diploma20,314
High school or equivalent79,646
Some college, no degree82,188
Associate degree36,691
Bachelor’s degree160,494
Graduate or professional130,844
Marital status by sexMale and Female
6,97622,999
Widowed
19,30629,908
Divorced
4,0885,350
Separated
166,826163,880
Now Married
115,70897,841
Never Married
16,11117,866
Married Spouse Absent
150,715146,014
Married Spouse Present
Marital status by sex values
CategoryMaleFemale
Widowed6,97622,999
Divorced19,30629,908
Separated4,0885,350
Now Married166,826163,880
Never Married115,70897,841
Married Spouse Absent16,11117,866
Married Spouse Present150,715146,014

Housing

Tenure, occupancy, and housing stock

Median home value
$1,559,600
Median gross rent
$2,922
Housing tenure
Owner
154,60758.5%
Renter
109,81241.5%
Occupied homes: 264,419.
Housing tenure values
CategoryValue
Owner154,607
Renter109,812
Housing occupancy
Occupied
264,41992.1%
Vacant
22,7657.9%
Housing units: 287,184.

Derived from published counts

Housing occupancy values
CategoryValue
Occupied264,419
Vacant22,765

Owner financing

Owners with mortgage
102,187
Owners without mortgage
52,420
Vacancy reason
For rent10,352
For sale1,075
Rented, not occupied1,212
Sold, not occupied961
Seasonal3,358
Migrant workers37
Other5,770
Vacancy reason values
CategoryValue
For rent10,352
For sale1,075
Rented, not occupied1,212
Sold, not occupied961
Seasonal3,358
Migrant workers37
Other5,770
Structure type
Detached158,871
Attached25,053
2–4 units17,181
5–19 units33,618
20+ units48,827
Mobile or other3,634
View detailed source bins
2–4 units
Structure 2 Units
5,690
Structure 3–4 Units
11,491
5–19 units
Structure 5–9 Units
16,093
Structure 10–19 Units
17,525
20+ units
Structure 20–49 Units
20,625
Structure 50 Plus Units
28,202
Mobile or other
Structure Mobile Home
3,300
Structure Boat Rv Van Other
334
Detailed source values for Structure type
Structure type values
CategoryValue
Detached158,871
Attached25,053
2–4 units17,181
5–19 units33,618
20+ units48,827
Mobile or other3,634
Year builtHousing units by period
116,26540.5%
Before 1960
91,87632.0%
1960–79
44,11915.4%
1980–99
31,97911.1%
2000–19
2,9451.0%
2020+
View detailed source bins
Before 1960
1939 Earlier
24,780
1940–1949
29,575
1950–1959
61,910
1960–79
1960–1969
45,879
1970–1979
45,997
1980–99
1980–1989
27,820
1990–1999
16,299
2000–19
2000–2009
16,383
2010–2019
15,596
Detailed source values for Year built
Year built values
CategoryValue
Before 1960116,265
1960–7991,876
1980–9944,119
2000–1931,979
2020+2,945
Move-in periodOwner and Renter
Before 1990
33,854
1,633
1990s
25,275
3,636
2000s
33,973
12,164
2010s
45,016
45,819
2020–22
14,456
36,922
2023+
2,033
9,638
Move-in period values
CategoryOwnerRenter
Before 199033,8541,633
1990s25,2753,636
2000s33,97312,164
2010s45,01645,819
2020–2214,45636,922
2023+2,0339,638
Home valueOwner-occupied homes
2,8511.8%
Under $100k
2,9161.9%
$100–249k
2,8411.8%
$250–499k
5,5113.6%
$500–749k
15,95210.3%
$750–999k
42,81027.7%
$1–1.49m
81,72652.9%
$1.5m+
View detailed source bins
Under $100k
Under 10000
1,505
10000–14999
373
15000–19999
126
20000–24999
105
25000–29999
42
30000–34999
49
35000–39999
10
40000–49999
83
50000–59999
96
60000–69999
106
70000–79999
83
80000–89999
75
90000–99999
198
$100–249k
100000–124999
1,009
125000–149999
277
150000–174999
691
175000–199999
266
200000–249999
673
$250–499k
250000–299999
550
300000–399999
1,071
400000–499999
1,220
$1.5m+
1500000–1999999
28,134
2000000+
53,592
Detailed source values for Home value
Home value values
CategoryValue
Under $100k2,851
$100–249k2,916
$250–499k2,841
$500–749k5,511
$750–999k15,952
$1–1.49m42,810
$1.5m+81,726
Gross rentRenter-occupied homes
Under $5002,554
$500–9992,135
$1,000–1,4993,933
$1,500–1,99910,375
$2,000–2,49918,970
$2,500–2,99918,304
$3,000+50,524
View detailed source bins
Under $500
Under 100
93
100–149
74
150–199
158
200–249
335
250–299
344
300–349
420
350–399
409
400–449
444
450–499
277
$500–999
500–549
201
550–599
207
600–649
259
650–699
103
700–749
143
750–799
135
800–899
519
900–999
568
$1,000–1,499
1000–1249
1,898
1250–1499
2,035
$3,000+
3000–3499
15,532
3500+
34,992
Detailed source values for Gross rent
Gross rent values
CategoryValue
Under $5002,554
$500–9992,135
$1,000–1,4993,933
$1,500–1,99910,375
$2,000–2,49918,970
$2,500–2,99918,304
$3,000+50,524
Vehicle availabilityOwner and Renter
No vehicle
4,355
10,874
1 vehicle
34,105
48,519
2 vehicles
66,079
35,023
3 vehicles
32,419
10,532
4 vehicles
11,987
3,331
5+ vehicles
5,662
1,533
Vehicle availability values
CategoryOwnerRenter
No vehicle4,35510,874
1 vehicle34,10548,519
2 vehicles66,07935,023
3 vehicles32,41910,532
4 vehicles11,9873,331
5+ vehicles5,6621,533

Transportation

How residents get to work

Workers age 16+
384,595
Average commute
26.5 min
Travel mode
Drive alone
217,91856.7%Derived from published counts
Carpool
33,5298.7%Derived from published counts
Public transit
19,4755.1%Derived from published counts
Walk or bicycle
13,4023.5%Derived from published counts
Work from home
93,27724.3%Derived from published counts
Other
6,9941.8%Derived from published counts
Workers: 384,595.

Derived from published counts

View detailed source bins
Walk or bicycle
Walked
8,877
Bicycle
4,525
Other
Other Transportation
5,508
Motorcycle
580
Taxi Or Ride Hailing
906
Detailed source values for Travel mode
Travel mode values
CategoryValue
Drive alone217,918
Carpool33,529
Public transit19,475
Walk or bicycle13,402
Work from home93,277
Other6,994
Commute timeWorkers by travel time
60,80620.9%
Under 15 min
112,84538.7%
15–29 min
71,29624.5%
30–44 min
24,9468.6%
45–59 min
21,4257.4%
60+ min
View detailed source bins
Under 15 min
Under 5
3,979
5–9
20,638
10–14
36,189
15–29 min
15–19
48,964
20–24
44,808
25–29
19,073
30–44 min
30–34
46,003
35–39
10,706
40–44
14,587
60+ min
60–89
16,674
90+
4,751
Detailed source values for Commute time
Commute time values
CategoryValue
Under 15 min60,806
15–29 min112,845
30–44 min71,296
45–59 min24,946
60+ min21,425

Workforce

Labor force and job flows

Population age 16+
615,229
Civilian labor force
413,189
Employed
393,458
Unemployed
19,731
Unemployment rate
4.8%
Poverty universe
736,087
Persons below poverty
49,359
Gini index
0.5
White-collar workers
281,000
Blue-collar workers
52,802
Occupation by sexMale and Female
Service Occupations
26,791
32,865
Sales Office Occupations
24,873
38,279
Management Business Science Arts
112,898
104,950
Production Transportation Material Moving
22,360
7,542
Natural Resources Construction Maintenance
22,034
866
Occupation by sex values
CategoryMaleFemale
Service Occupations26,79132,865
Sales Office Occupations24,87338,279
Management Business Science Arts112,898104,950
Production Transportation Material Moving22,3607,542
Natural Resources Construction Maintenance22,034866

Employment and commuting

Resident workers
340,163
Workplace jobs
391,292
Internal commuters
127,570
Inbound commuters
263,722
Outbound commuters
212,593
Net worker inflow
51,129

Health insurance

Insurance coverage

Coverage status
Insured
710,55896.2%Derived from published counts
Uninsured
28,0823.8%
Residents: 738,640.
Coverage status values
CategoryValue
Insured710,558
Uninsured28,082
Uninsured by ageResidents without coverage
3,31711.8%
Under 19
10,41537.1%
Age 19–34
13,17746.9%
Age 35–64
1,1734.2%
Age 65+
Uninsured by age values
CategoryValue
Under 193,317
Age 19–3410,415
Age 35–6413,177
Age 65+1,173

Community

Nativity, citizenship, and mobility

Nativity
Native born
477,08264.3%
Foreign born
265,25835.7%
Residents: 742,340.
Nativity values
CategoryValue
Native born477,082
Foreign born265,258

Citizenship

Naturalized citizen
154,706
Not a citizen
110,552

Residential mobility

Same house
648,899
Within same county
37,756
From another county
28,617
From another state
10,998
From abroad
7,970

Sources and method

Vintages, quality, and methodology

Source vintages

Demographics
2024 ACS 5-year
Historical baseline
2020 Census
Employment
2023 LODES

Report quality

Status
complete
kind
published geography
estimated
false
Historical housing baseline
2020 housing units
283,693

The 2020 Census is used only as a historical population and housing baseline. It is not an annual population series and no intermediate years are inferred.

Named-geography values are published ACS estimates; margins of error are retained alongside direct values where supplied.

County demographics

About San Mateo County, California

San Mateo County, California has 742,340 residents and a median age of 40.9 years. It ranks No. 89 by population within this indexed county cohort. Population has declined 2.9% since the 2020 Census. Median household income is $78,121 above United States.

Market context

Compare the numbers.

Published values on the same 2024 ACS basis.
Comparison of selected demographic measures
GeographyPopulationMedian incomeMedian ageOwner occupied
San Mateo County, California742,340$158,85540.9 years58.5%
United States334,922,500$80,73438.9 years65.2%
California39,287,377$99,12237.9 years55.9%

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