San Mateo County, CA Demographics
What is the population of San Mateo County?
There are 759,784 residents in San Mateo County, with a median age of 42. Of this, 49.82% are males and 50.18% are females. US-born citizens make up 62.39% of the resident pool in San Mateo County, while non-US-born citizens account for 22.8%. Additionally, 14.81% of the population is represented by non-citizens.
A total of 661,785 people in San Mateo County currently live in the same house as they did last year.
| Y-o-Y Change | ||
| Total Population | 759,784 | -1.2% |
| Male Population | 378,513 | -1.5% |
| Female Population | 381,271 | -1.0% |
Male Population 49.82%
Female Population 50.18%
| Y-o-Y Change | ||
| Median Age | 42 | 0.2% |
| Citizen U.S. Born | 474,013 | -2.0% |
| Citizen not U.S. Born | 173,247 | -0.8% |
| Not Citizen | 112,524 | 1.3% |
Citizen U.S. Born 62.39%
Citizen not U.S. Born 22.8%
Not Citizen 14.81%
| Y-o-Y Change | ||
| Moved from Abroad | 8,032 | -2.9% |
| Moved from Same County | 39,607 | -6.2% |
| Moved from Same State | 29,713 | -1.4% |
| Moved from Different State | 12,196 | 3.8% |
| Same House as Last Year | 661,785 | -1.0% |
Moved from Abroad 1.07%
Moved from Same County 5.27%
Moved from Same State 3.95%
Moved from Different State 1.62%
Same House as Last Year 88.08%
What are the employment statistics in San Mateo County?
White-collar workers make up 86.69% of the working population in San Mateo County, while blue-collar employees account for 13.31%. There are also 83,746 entrepreneurs in San Mateo County (10.43% of the workforce); 555,324 workers employed in private companies (69.16%); and 92,818 people working in governmental institutions (11.56%).
| Y-o-Y Change | ||
| White Collar | 696,088 | 96.9% |
| Blue Collar | 106,896 | 91.5% |
White Collar 86.69%
Blue Collar 13.31%
| Y-o-Y Change | ||
| Self Employees | 83,746 | 97.5% |
| Private Companies | 555,324 | 93.8% |
| Governmental Workers | 92,818 | 103.3% |
| Not for Profit Companies | 71,096 | 104.3% |
Self Employees 10.43%
Private Companies 69.16%
Governmental Workers 11.56%
Not for Profit Companies 8.85%
How many households are there in San Mateo County?
There are a total of 269,290 households in San Mateo County, each made up of around 2 members. Family establishments represent 68.39% of these San Mateo County households, while non-family units account for the remaining 31.61%. Additionally, 31.25% of households have children and 68.75% of households are without children.
| Y-o-Y Change | ||
| Total households | 269,290 | 0.0% |
| Average People per Household | 2 | -21.3% |
| Family Households | 184,170 | -1.0% |
| Non-Family Households | 85,120 | 2.2% |
Family Households 68.39%
Non-Family Households 31.61%
| Y-o-Y Change | ||
| Households with Children | 84,150 | -1.9% |
| Households without Children | 185,140 | 0.9% |
Households with Children 31.25%
Households without Children 68.75%
What are the median and average incomes in San Mateo County?
The average annual household income in San Mateo County is $255,163, while the median household income sits at $168,625 per year. Residents aged 25 to 44 earn $207,238, while those between 45 and 64 years old have a median wage of $196,790. In contrast, people younger than 25 and those older than 65 earn less, at $88,776 and $102,772, respectively.
| Y-o-Y Change | ||
| Average Household Income | $255,163 | 5.0% |
| Median Household Income | $168,625 | 11.2% |
| People below Poverty Level | 47,627 | -0.6% |
| People above Poverty Level | 697,757 | -1.4% |
How many homeowners and renters are there in San Mateo County?
There are 290,875 housing units in San Mateo County, and the median year in which these properties were built is 1964. Of the 269,290 occupied housing units in San Mateo County, 59.21% are owner-occupied, while 40.79% have renters living in them.
Meanwhile, properties bought with mortgages account for 66.96% of the units, and the median value of a home with a mortgage is $1,553,850. In general, housing costs reach $2,990 per month in San Mateo County.
| Y-o-Y Change | ||
| Housing Units | 290,875 | 0.5% |
| Median Year Built | 1964 | 0.0% |
| Built in 1939 or Earlier | 24,486 | 2.5% |
| Built between 1940 and 1949 | 30,140 | -2.0% |
| Built between 1950 and 1959 | 65,416 | 0.6% |
| Built between 1960 and 1969 | 47,486 | 0.4% |
| Built between 1970 and 1979 | 46,403 | -2.9% |
| Built between 1980 and 1989 | 27,191 | 2.0% |
| Built between 1990 and 1999 | 16,796 | -2.5% |
| Built between 2000 and 2009 | 16,387 | 3.3% |
| Built between 2010 and 2019 | 15,064 | 5.6% |
| Built in 2020 or Later | 1,506 | 125.5% |
| Y-o-Y Change | ||
| Occupied Housing Units | 269,290 | 0.0% |
| Owner Occupied | 159,449 | -0.7% |
| Renter Occupied | 109,841 | 1.1% |
Owner Occupied 59.21%
Renter Occupied 40.79%
| Y-o-Y Change | ||
| With Mortgage | 106,767 | -2.0% |
| Without Mortgage | 52,682 | 2.0% |
| Median Value with Mortgage | $1,553,850 | 1.2% |
| Median Value without Mortgage | $1,718,100 | 7.7% |
| Median Housing Costs per Month | $2,990 | 2.1% |
With Mortgage 66.96%
Without Mortgage 33.04%
What is the level of education in San Mateo County?
Approximately 20.06% of the population in San Mateo County holds a high school degree (that's 121,879 residents), while 16.64% have attained a college certificate (101,119 locals) and 28.4% have a bachelor's degree (172,566 people).
| Y-o-Y Change | ||
| No High School | 32,911 | 5.0% |
| Some High School | 121,879 | -1.4% |
| Some College | 101,119 | -19.4% |
| Associate Degree | 41,272 | 0.7% |
| Bachelor's Degree | 172,566 | -1.9% |
| Graduate Degree | 137,825 | 0.6% |
No High School 5.42%
Some High School 20.06%
Some College 16.64%
Associate Degree 6.79%
Bachelor's Degree 28.4%
Graduate Degree 22.68%
What is the marital status of San Mateo County residents?
A total of 213,628 people in San Mateo County have never been married (which represents 33.19% of the total population), while 340,845 of them are wedded (52.95%). Separated and divorced residents are in smaller numbers, at 8,835 (1.37%) and 49,568 (7.7%), respectively.
| Y-o-Y Change | ||
| Never Married | 213,628 | 0.1% |
| Married | 340,845 | -1.8% |
| Separated | 8,835 | -2.8% |
| Widowed | 30,856 | -1.8% |
| Divorced | 49,568 | -1.4% |
Never Married 33.19%
Married 52.95%
Separated 1.37%
Widowed 4.79%
Divorced 7.7%
What are the most common means of transportation in San Mateo County?
The top three means of transportation people in San Mateo County use to get to work are: car, bus or trolley bus and walking. A total of 259,785 residents commute by car, 9,125 prefer going to work by bus or trolley bus and 9,088 by walking
| Y-o-Y Change | ||
| Car | 259,785 | -4.4% |
| Bus or TrolleyBus | 9,125 | -7.4% |
| Railroad | 5,970 | -20.9% |
| Ferryboat | 14 | N/A |
| Bicycle | 4,941 | -9.0% |
| Motorcycle | 822 | -15.4% |
| TaxiCab | 1,097 | -1.0% |
| Walk | 9,088 | -3.9% |
What is the median and average household income in San Mateo County by zipcode?
| ZipCode | Population | Number of Households | Median Income | Average Income |
|---|---|---|---|---|
| 94002 | 27,730 | 10,608 | $204,573 | $256,668 |
| 94005 | 4,718 | 1,867 | $151,593 | $260,165 |
| 94010 | 42,794 | 16,252 | $191,758 | $304,931 |
| 94014 | 46,269 | 14,107 | $115,513 | $138,516 |
| 94015 | 64,121 | 20,514 | $123,552 | $153,286 |
| 94019 | 14,754 | 5,299 | $153,272 | $220,245 |
| 94020 | 1,745 | 762 | $250,001 | $270,683 |
| 94021 | 332 | 148 | $209,712 | $263,636 |
| 94025 | 40,230 | 14,318 | $215,871 | $346,798 |
| 94027 | 7,030 | 2,275 | $250,001 | $618,416 |
Methodology & Disclaimers
Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2023 American Community Survey. The information is updated yearly, as soon as new data is made available by the US Census Bureau.
No representation, guarantee or warranty is made as to the accuracy or completeness of information modified or aggregated for specific neighborhoods and/or zip codes.