San Mateo County, California demographics
Median household income: 136,837
Demographics, population, home values, social and economic characteristics of San Mateo County, California.
Population
| 2021 | 762,488 |
| 2020 | 765,623 |
| 2019 | 767,423 |
| 2018 | 765,935 |
| 2017 | 763,450 |
| 2016 | 754,748 |
| 2015 | 748,731 |
| 2014 | 739,837 |
| 2013 | 729,543 |
| 2012 | 721,183 |
| 2011 | 711,622 |
| 2010 | 704,327 |
| 2009 | 701,886 |
San Mateo County, CA cities
Atherton town - 7,181
Belmont city - 28,109
Brisbane city - 4,803
Broadmoor CDP - 4,487
Burlingame city - 31,142
Colma town - 1,353
Daly City city - 104,914
East Palo Alto city - 29,888
El Granada CDP - 5,842
Emerald Lake Hills CDP - 4,545
Foster City city - 33,511
Half Moon Bay city - 11,792
Hillsborough town - 11,390
La Honda CDP - 1,279
Ladera CDP - 1,449
Loma Mar CDP - 252
Menlo Park city - 33,677
Millbrae city - 23,083
Montara CDP - 2,879
Moss Beach CDP - 3,227
North Fair Oaks CDP - 14,360
Pacifica city - 38,595
Pescadero CDP - 362
Portola Valley town - 4,458
Redwood City city - 83,905
San Bruno city - 43,775
San Carlos city - 30,754
San Mateo city - 105,087
South San Francisco city - 66,331
West Menlo Park CDP - 3,492
Woodside town - 5,316
Census data for San Mateo County, California
Demographic and housing estimates in San Mateo County, California
| Total population | 762,488 |
| Male | 379,626 |
| Female | 382,862 |
| Total population | 762,488 |
| Under 5 years | 41,711 |
| 5 to 9 years | 43,385 |
| 10 to 14 years | 43,955 |
| 15 to 19 years | 41,310 |
| 20 to 24 years | 40,420 |
| 25 to 34 years | 112,110 |
| 35 to 44 years | 110,689 |
| 45 to 54 years | 105,173 |
| 55 to 59 years | 52,626 |
| 60 to 64 years | 47,240 |
| 65 to 74 years | 71,112 |
| 75 to 84 years | 34,879 |
| 85 years and over | 17,878 |
| Median age (years) | 40.0 |
| Under 18 years | 155,785 |
| 16 years and over | 625,530 |
| 18 years and over | 606,703 |
| 21 years and over | 584,595 |
| 62 years and over | 151,602 |
| 65 years and over | 123,869 |
| Total population | 762,488 |
| One race | 693,923 |
| White | 349,707 |
| Black or African American | 17,999 |
| American Indian and Alaska Native | 5,477 |
| Asian | 227,862 |
| Native Hawaiian and Other Pacific Islander | 9,308 |
| Some other race | 83,570 |
| Two or more races | 68,565 |
| Citizen, VOTING AGE 18 and over population | 504,887 |
| Male Citizen, VOTING AGE 18 and over population | 247,131 |
| Female Citizen, VOTING AGE 18 and over population | 257,756 |
Social characteristics in San Mateo County, California
| Total households | 264,892 |
| Family households (families) | 146,786 |
| Married-couple family | 15,610 |
| Male householder, no wife present, family | 41,898 |
| Female householder, no husband present, family | 26,568 |
| Nonfamily households | 60,598 |
| Average household size | 83,805 |
| Average family size | 2.84 |
Economic characteristics in San Mateo County, California
| Total households | 264,892 |
| Less than $10,000 | 6,911 |
| $10,000 to $14,999 | 5,123 |
| $15,000 to $24,999 | 9,577 |
| $25,000 to $34,999 | 9,852 |
| $35,000 to $49,999 | 15,493 |
| $50,000 to $74,999 | 25,815 |
| $75,000 to $99,999 | 25,325 |
| $100,000 to $149,999 | 44,869 |
| $150,000 to $199,999 | 33,649 |
| $200,000 or more | 88,278 |
| Median household income (dollars) | 136,837 |
Housing characteristics in San Mateo County, California
| Total housing units | 282,570 |
| Occupied housing units | 264,892 |
| Vacant housing units | 17,678 |
| Total housing units | 282,570 |
| 1-unit, detached | 158,774 |
| 1-unit, attached | 24,022 |
| 2 units | 6,678 |
| 3 or 4 units | 12,828 |
| 5 to 9 units | 16,778 |
| 10 to 19 units | 16,638 |
| 20 or more units | 43,482 |
| Mobile home | 3,074 |
| Boat, RV, van, etc. | 296 |
| Total housing units | 282,570 |
| Built 2014 or later | 398 |
| Built 2010 to 2013 | 12,543 |
| Built 2000 to 2009 | 15,188 |
| Built 1990 to 1999 | 17,128 |
| Built 1980 to 1989 | 26,467 |
| Built 1970 to 1979 | 47,219 |
| Built 1960 to 1969 | 48,629 |
| Built 1950 to 1959 | 62,637 |
| Built 1940 to 1949 | 28,742 |
| Built 1939 or earlier | 23,619 |
| Total housing units | 282,570 |
| 1 room | 13,170 |
| 2 rooms | 15,618 |
| 3 rooms | 35,999 |
| 4 rooms | 49,077 |
| 5 rooms | 48,952 |
| 6 rooms | 44,489 |
| 7 rooms | 30,675 |
| 8 rooms | 21,224 |
| 9 rooms or more | 23,366 |
| Median rooms | 5.1 |
| Total housing units | 282,570 |
| No bedroom | 14,789 |
| 1 bedroom | 42,403 |
| 2 bedrooms | 72,647 |
| 3 bedrooms | 91,738 |
| 4 bedrooms | 46,966 |
| 5 or more bedrooms | 14,027 |
| Occupied housing units | 264,892 |
| Owner-occupied | 158,281 |
| Renter-occupied | 106,611 |
| Average household size of owner-occupied unit | 2.94 |
| Average household size of renter-occupied unit | 2.69 |
| Occupied housing units | 264,892 |
| Moved in 2017 or later | 24,335 |
| Moved in 2015 to 2016 | 65,253 |
| Moved in 2010 to 2014 | 46,334 |
| Moved in 2000 to 2009 | 55,280 |
| Moved in 1990 to 1999 | 32,329 |
| Moved in 1989 and earlier | 41,361 |
| Owner-occupied units | 158,281 |
| Less than $50,000 | 2,111 |
| $50,000 to $99,999 | 887 |
| $100,000 to $149,999 | 1,152 |
| $150,000 to $199,999 | 596 |
| $200,000 to $299,999 | 1,140 |
| $300,000 to $499,999 | 3,422 |
| $500,000 to $999,999 | 42,454 |
| $1,000,000 or more | 106,519 |
| Median (dollars) | 1,225,900 |
| Owner-occupied units | 158,281 |
| Housing units with a mortgage | 109,518 |
| Housing units without a mortgage | 48,763 |
| Occupied units paying rent | 103,653 |
| Less than $500 | 2,489 |
| $500 to $999 | 3,083 |
| $1,000 to $1,499 | 7,197 |
| $1,500 to $1,999 | 14,836 |
| $2,000 to $2,499 | 20,694 |
| $2,500 to $2,999 | 17,817 |
| $3,000 or more | 37,537 |
| Median (dollars) | 2,599 |
| No rent paid | 2,958 |
Demographic data for San Mateo County, CA and each city in the county. Lists of cities by population, wealth and poverty in San Mateo County, CA.