Westlake, Daly City, San Mateo County, CA demographics:
population, income, and more

Total population
28,470
-0.1% year-over-year change
Median household income
$127,056/yr
2.8% year-over-year change
Housing units
9,955
0.4% year-over-year change

Westlake population

How many people live in Westlake

Westlake is home to 28,470 residents, according to the most recent Census data. Gender-wise, 49.4% of Westlake locals are male, and 50.6% are female.

Total population
28,470
-0.1% year-over-year change
Gender ratio
Male
49.4%
14,056
Female
50.6%
14,414
Value Percent YoY change
Male 14,056 49.4% 0.1%
Female 14,414 50.6% -0.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Westlake is 42, with the population distributed as follows: about 13.2% are children under 15, then 11.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 29.2% of the population, while another 25% fall into the 45 to 64 bracket. Finally, around 20.7% are 65 or older.

Median age
41.6
Age breakdown
Under 15
13.2%
15 to 24
11.8%
25 to 44
29.2%
45 to 64
25%
Over 65
20.7%
Value Percent YoY change
Under 15 3,773 13.2% -1.5%
15 to 24 3,362 11.8% -3.1%
25 to 44 8,311 29.2% -1.1%
45 to 64 7,127 25% 1.1%
Over 65 5,897 20.7% 3.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Westlake, 50.3% of the population are US-born citizens, while 37.7% have gained naturalized citizenship. At the same time, 12% of residents are non-citizens. As for race, 16.5% of locals are Caucasian, 3.3% are African American and 60.9% have Asian roots. Another 1.2% are Indigenous American, 1% are Pacific Islanders, while 5.7% identify as another race. There’s also a share of 11.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
50.3%
Non-U.S.-born citizens
37.7%
Non-citizens
12%
Value Percent YoY change
U.S.-born citizens 14,326 50.3% 1.0%
Non-U.S.-born citizens 10,740 37.7% -3.0%
Non-citizens 3,404 12% 5.4%
Racial breakdown
White
16.5%
Black or African American
3.3%
American Indian and Alaska Native
1.2%
Asian
60.9%
Native Hawaiian and other Pacific Islander
1%
Two or more races
11.5%
Other
5.7%
Value Percent
White 4,685 16.5%
Black or African American 928 3.3%
American Indian and Alaska Native 338 1.2%
Asian 17,333 60.9%
Native Hawaiian and other Pacific Islander 279 1%
Two or more races 3,284 11.5%
Other 1,624 5.7%

Households in Westlake

A peek inside Westlake households

Westlake has 9,040 households, with an average of 3 members in each. Of these, 73.6% are families, while the remaining 26.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
9,040
-0.8% year-over-year change
Average people per household
3
Non-family households
2,391
Family households
6,649
Value Percent YoY change
Non-family households 2,391 26.4% -2.5%
Family households 6,649 73.6% -0.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Westlake

The housing landscape of Westlake

Westlake's housing consists of 9,955 units, with 60.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 4.1% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 0.6% of the housing landscape.

Housing units
9,955
0.4% year-over-year change
Housing types
Value Percent
1 unit, detached 5,997 60.2%
1 unit, attached 404 4.1%
2 units 184 1.8%
3 or 4 units 191 1.9%
5 to 9 units 247 2.5%
10 to 19 units 622 6.2%
20 to 49 units 1,083 10.9%
50 or more units 1,164 11.7%
Mobile home 55 0.6%
Boat, RV, van, etc. 8 0.1%
Homes built since 2020
27
35.0% year-over-year change

The age of buildings in Westlake

In Westlake, the median construction year is 1964. About 2.8% of homes were built before the 1940s, with another 7.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 2.6% of homes were added from 2000 to 2009, 1.3% between 2010 and 2019, and 0.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 283 2.8% 35.4%
Built between 1940 and 1949 777 7.8% 24.3%
Built between 1950 and 1959 3,115 31.3% -2.4%
Built between 1960 and 1969 1,982 19.9% -7.2%
Built between 1970 and 1979 2,132 21.4% -3.1%
Built between 1980 and 1989 903 9.1% 20.7%
Built between 1990 and 1999 345 3.5% -10.8%
Built between 2000 and 2009 259 2.6% 11.6%
Built between 2010 and 2019 132 1.3% -19.5%
Built in 2020 or later 27 0.3% 35.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Westlake occupancy rates

Out of the 9,040 occupied housing units in Westlake, 60.4% are owner-occupied, while 39.6% are lived in by tenants. Meanwhile, 9.2% of all homes on the local market sit vacant.

Occupied housing units
9,040
-0.8% year-over-year change
Occupancy breakdown
Renter occupied
3,581
Owner occupied
5,459
Value Percent YoY
change
Renter occupied 3,581 39.6% -0.6%
Owner occupied 5,459 60.4% -0.9%
Unoccupied housing units
9.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Westlake housing costs

Housing costs in Westlake come to a median of $2,703 per month, while tenants specifically pay a median gross rent of $2,757.

Median housing costs per month
$2,703/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Westlake
$2,757/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Westlake

Westlake education at a glance

About 24.1% of the population in Westlake went to high school, while 22.8% pursued college studies. Another 8.3% earned an associate degree and 30.6% hold a bachelor’s. Meanwhile, 8.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,323 5.5% 5.5%
High school diploma 5,770 24.1% 0.5%
College diploma 5,469 22.8% -3.4%
Associate degree 1,994 8.3% 6.1%
Bachelor's degree 7,338 30.6% -0.7%
Graduate degree 2,049 8.6% 2.5%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Westlake

How much people earn in Westlake

The average annual household income in Westlake was $158,210 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.2% change from the previous year. At the same time, the median income stood at $127,056, reflecting a +2.8% shift over the same period.

Average household income in Westlake
$158,210/year
4.2% year-over-year change
Median household income in Westlake
$127,056/year
2.8% year-over-year change

Westlake income by age

In Westlake, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $142,631. Those with someone between 45 and 64 in charge, often well established professionally, earn $146,930 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $66,176, while those led by someone over 65, many of whom may be retired, have about $99,087 in earnings. Overall, 93% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $66,176 -7.1%
25 - 44 $142,631 1.3%
45 - 64 $146,930 -1.4%
Over 65 $99,087 7.4%
Above poverty level
26,075
Below poverty level
1,948
Value Percent YoY
change
Above poverty level 26,075 93% -0.3%
Below poverty level 1,948 7% 5.3%

Employment in Westlake

Workforce and job types in Westlake

82% of the working population are employed in professional or administrative positions, while 18% are in hands-on or service-based jobs. Also, 8% run their own businesses, 68.6% are employed by private companies, and 14.8% work in the public sector.

Workforce demographics

White collar
12,941
Blue collar
2,832
Value Percent YoY change
White collar 12,941 82% -0.5%
Blue collar 2,832 18% 3.5%
Employer type
Self employees
8%
Private companies
68.6%
Governmental workers
14.8%
Not for profit companies
8.6%
Value Percent YoY change
Self employees 1,262 8% 1.0%
Private companies 10,815 68.6% -0.6%
Governmental workers 2,340 14.8% 0.9%
Not for profit companies 1,357 8.6% 4.4%

Transportation in Westlake

How people get around in Westlake

In Westlake, the average commute time is 12 minutes. Commuting methods vary: 88.8% of residents travel by personal vehicle and 2.1% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
12 min
0.0% year-over-year change
Means of transportation
Value Percent YoY change
Car 10,487 88.8% -2.2%
Taxicab 40 0.3% -45.2%
Bus or trolleybus 898 7.6% 11.8%
Railroad 67 0.6% 28.9%
Motorcycle 19 0.2% -44.1%
Bicycle 44 0.4% 388.9%
Walk 253 2.1% 6.8%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Westlake by zipcode?

Zipcode Population Number of households Median income Average income
94015 64,091 20,350 $127,056 $159,718

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FAQs about Westlake demographics 

What is the total population of Westlake?

Westlake has a total population of 28,470 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.1% compared to a year ago.

What is the gender ratio in Westlake?

The gender ratio in Westlake is as follows:
  • 49.4% males (14,056 residents)
  • 50.6% females (14,414 residents)

What is the median age in Westlake?

The median age in Westlake is 41.6.

What is the age distribution of the population in Westlake?

The age distribution in Westlake is as follows:
  • Under 15: 13.2% (3,773 residents)
  • Ages 15-24: 11.8% (3,362 residents)
  • Ages 25-44: 29.2% (8,311 residents)
  • Ages 45-64: 25% (7,127 residents)
  • Over 65: 20.7% (5,897 residents)

What is the racial and ethnic makeup of Westlake?

The racial and ethnic makeup of Westlake is as follows:
  • White: 16.5% (4,685 residents)
  • Black or African American: 3.3% (928 residents)
  • American Indian and Alaska Native: 1.2% (338 residents)
  • Asian: 60.9% (17,333 residents)
  • Native Hawaiian and Other Pacific Islander: 1% (279 residents)
  • Two or More Races: 11.5% (3,284 residents)
  • Other: 5.7% (1,624 residents)

What percentage of the population in Westlake are U.S.-born citizens?

U.S.-born citizens represent 50.3% of the population in Westlake.

How many housing units are there in Westlake?

There are 9,955 housing units in Westlake, reflecting a +0.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Westlake and what is the average household size?

Westlake has a total of 9,040 households, with an average of 3 people in each.

What is the median household income in Westlake?

Westlake has a median household income of $127,056, representing a +2.8% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Westlake?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 82% (12,941 residents)
  • Blue-collar workers: 18% (2,832 residents)

Places of employment:
  • Self-employed: 8% (1,262 residents)
  • Private companies: 68.6% (10,815 residents)
  • Governmental workers: 14.8% (2,340 residents)
  • Not-for-profit companies: 8.6% (1,357 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025