District 4 - Twin Peaks West, San Francisco, CA demographics:
population, income, and more

Total population
45,986
-0.3% year-over-year change
Median household income
$199,211/yr
0.2% year-over-year change
Housing units
18,407
-0.7% year-over-year change

District 4 - Twin Peaks West population

How many people live in District 4 - Twin Peaks West

District 4 - Twin Peaks West is home to 45,986 residents, according to the most recent Census data. Gender-wise, 50.7% of District 4 - Twin Peaks West locals are male, and 49.3% are female.

Total population
45,986
-0.3% year-over-year change
Gender ratio
Male
50.7%
23,295
Female
49.3%
22,691
Value Percent YoY change
Male 23,295 50.7% -0.2%
Female 22,691 49.3% -0.4%
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 District 4 - Twin Peaks West is 43, with the population distributed as follows: about 15.4% are children under 15, then 6.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 30% of the population, while another 26.9% fall into the 45 to 64 bracket. Finally, around 20.8% are 65 or older.

Median age
42.8
Age breakdown
Under 15
15.4%
15 to 24
6.8%
25 to 44
30%
45 to 64
26.9%
Over 65
20.8%
Value Percent YoY change
Under 15 7,099 15.4% 4.9%
15 to 24 3,146 6.8% -4.3%
25 to 44 13,772 30% 1.5%
45 to 64 12,388 26.9% -5.0%
Over 65 9,580 20.8% 1.0%
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 District 4 - Twin Peaks West, 68.5% of the population are US-born citizens, while 21.8% have gained naturalized citizenship. At the same time, 9.7% of residents are non-citizens. As for race, 43.4% of locals are Caucasian, 3.2% are African American and 32.1% have Asian roots. Another 0.7% are Indigenous American, 0.2% are Pacific Islanders, while 6.3% identify as another race. There’s also a share of 14.2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
68.5%
Non-U.S.-born citizens
21.8%
Non-citizens
9.7%
Value Percent YoY change
U.S.-born citizens 31,484 68.5% 0.1%
Non-U.S.-born citizens 10,031 21.8% -1.5%
Non-citizens 4,471 9.7% -0.5%
Racial breakdown
White
43.4%
Black or African American
3.2%
American Indian and Alaska Native
0.7%
Asian
32.1%
Native Hawaiian and other Pacific Islander
0.2%
Two or more races
14.2%
Other
6.3%
Value Percent
White 19,977 43.4%
Black or African American 1,473 3.2%
American Indian and Alaska Native 319 0.7%
Asian 14,742 32.1%
Native Hawaiian and other Pacific Islander 67 0.2%
Two or more races 6,520 14.2%
Other 2,888 6.3%

Households in District 4 - Twin Peaks West

A peek inside District 4 - Twin Peaks West households

District 4 - Twin Peaks West has 17,190 households, with an average of 2 members in each. Of these, 64.8% are families, while the remaining 35.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
17,190
-0.3% year-over-year change
Average people per household
2
Non-family households
6,053
Family households
11,137
Value Percent YoY change
Non-family households 6,053 35.2% -1.1%
Family households 11,137 64.8% 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 District 4 - Twin Peaks West

The housing landscape of District 4 - Twin Peaks West

District 4 - Twin Peaks West's housing consists of 18,407 units, with 52.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 19.7% 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 0.1% of the housing landscape.

Housing units
18,407
-0.7% year-over-year change
Housing types
Value Percent
1 unit, detached 9,692 52.7%
1 unit, attached 3,632 19.7%
2 units 1,293 7%
3 or 4 units 932 5.1%
5 to 9 units 678 3.7%
10 to 19 units 1,036 5.6%
20 to 49 units 700 3.8%
50 or more units 403 2.2%
Mobile home 20 0.1%
Boat, RV, van, etc. 20 0.1%
Homes built since 2020
41
4,000.0% year-over-year change

The age of buildings in District 4 - Twin Peaks West

In District 4 - Twin Peaks West, the median construction year is 1941. About 42% of homes were built before the 1940s, with another 10.1% going up by 1949. Most development happened in the second half of the 20th century. Then, 3.1% of homes were added from 2000 to 2009, 1% between 2010 and 2019, and 0.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 7,737 42% -1.0%
Built between 1940 and 1949 1,853 10.1% -1.9%
Built between 1950 and 1959 2,582 14% -2.6%
Built between 1960 and 1969 2,429 13.2% 7.4%
Built between 1970 and 1979 1,985 10.8% -5.5%
Built between 1980 and 1989 585 3.2% -8.2%
Built between 1990 and 1999 444 2.4% 0.2%
Built between 2000 and 2009 571 3.1% 12.2%
Built between 2010 and 2019 179 1% -22.2%
Built in 2020 or later 41 0.2% 4,000.0%
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.

District 4 - Twin Peaks West occupancy rates

Out of the 17,190 occupied housing units in District 4 - Twin Peaks West, 68.4% are owner-occupied, while 31.6% are lived in by tenants. Meanwhile, 6.6% of all homes on the local market sit vacant.

Occupied housing units
17,190
-0.3% year-over-year change
Occupancy breakdown
Renter occupied
5,432
Owner occupied
11,758
Value Percent YoY
change
Renter occupied 5,432 31.6% -0.6%
Owner occupied 11,758 68.4% -0.2%
Unoccupied housing units
6.6%
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.

District 4 - Twin Peaks West housing costs

Housing costs in District 4 - Twin Peaks West come to a median of $3,173 per month, while tenants specifically pay a median gross rent of $3,064.

Median housing costs per month
$3,173/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 District 4 - Twin Peaks West
$3,064/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 District 4 - Twin Peaks West

District 4 - Twin Peaks West education at a glance

About 13.4% of the population in District 4 - Twin Peaks West went to high school, while 13.5% pursued college studies. Another 6% earned an associate degree and 34% hold a bachelor’s. Meanwhile, 28.9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,602 4.2% -8.2%
High school diploma 5,072 13.4% -1.3%
College diploma 5,103 13.5% -3.5%
Associate degree 2,270 6% -2.9%
Bachelor's degree 12,828 34% -0.4%
Graduate degree 10,904 28.9% 0.8%
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 District 4 - Twin Peaks West

How much people earn in District 4 - Twin Peaks West

The average annual household income in District 4 - Twin Peaks West was $252,972 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.8% change from the previous year. At the same time, the median income stood at $199,211, reflecting a +0.2% shift over the same period.

Average household income in District 4 - Twin Peaks West
$252,972/year
4.8% year-over-year change
Median household income in District 4 - Twin Peaks West
$199,211/year
0.2% year-over-year change

District 4 - Twin Peaks West income by age

In District 4 - Twin Peaks West, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $246,445. Those with someone between 45 and 64 in charge, often well established professionally, earn $242,770 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $53,823, while those led by someone over 65, many of whom may be retired, have about $97,102 in earnings. Overall, 93.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $53,823 -45.9%
25 - 44 $246,445 3.0%
45 - 64 $242,770 9.2%
Over 65 $97,102 -1.2%
Above poverty level
41,512
Below poverty level
2,677
Value Percent YoY
change
Above poverty level 41,512 93.9% 0.1%
Below poverty level 2,677 6.1% -7.2%

Employment in District 4 - Twin Peaks West

Workforce and job types in District 4 - Twin Peaks West

92.4% of the working population are employed in professional or administrative positions, while 7.6% are in hands-on or service-based jobs. Also, 12.4% run their own businesses, 60.2% are employed by private companies, and 15.3% work in the public sector.

Workforce demographics

White collar
22,543
Blue collar
1,850
Value Percent YoY change
White collar 22,543 92.4% -3.1%
Blue collar 1,850 7.6% 0.8%
Employer type
Self employees
12.4%
Private companies
60.2%
Governmental workers
15.3%
Not for profit companies
12.1%
Value Percent YoY change
Self employees 3,022 12.4% -4.4%
Private companies 14,683 60.2% -3.1%
Governmental workers 3,739 15.3% -3.7%
Not for profit companies 2,949 12.1% 2.2%

Transportation in District 4 - Twin Peaks West

How people get around in District 4 - Twin Peaks West

In District 4 - Twin Peaks West, the average commute time is 21 minutes. Commuting methods vary: 78.1% of residents travel by personal vehicle and 3.4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
21 min
-4.5% year-over-year change
Means of transportation
Value Percent YoY change
Car 10,561 78.1% -2.2%
Taxicab 89 0.7% 58.9%
Bus or trolleybus 1,747 12.9% -13.2%
Railroad 108 0.8% -22.9%
Ferryboat 1 0% 0.0%
Motorcycle 106 0.8% -46.2%
Bicycle 462 3.4% 2.2%
Walk 455 3.4% -9.2%
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 District 4 - Twin Peaks West by zipcode?

Zipcode Population Number of households Median income Average income
94127 20,288 7,390 $214,167 $313,280
94131 28,504 12,522 $199,211 $265,904
94112 79,277 23,225 $135,119 $183,335

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FAQs about District 4 - Twin Peaks West demographics 

What is the total population of District 4 - Twin Peaks West?

District 4 - Twin Peaks West has a total population of 45,986 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 -0.3% compared to a year ago.

What is the gender ratio in District 4 - Twin Peaks West?

The gender ratio in District 4 - Twin Peaks West is as follows:
  • 50.7% males (23,295 residents)
  • 49.3% females (22,691 residents)

What is the median age in District 4 - Twin Peaks West?

The median age in District 4 - Twin Peaks West is 42.8.

What is the age distribution of the population in District 4 - Twin Peaks West?

The age distribution in District 4 - Twin Peaks West is as follows:
  • Under 15: 15.4% (7,099 residents)
  • Ages 15-24: 6.8% (3,146 residents)
  • Ages 25-44: 30% (13,772 residents)
  • Ages 45-64: 26.9% (12,388 residents)
  • Over 65: 20.8% (9,580 residents)

What is the racial and ethnic makeup of District 4 - Twin Peaks West?

The racial and ethnic makeup of District 4 - Twin Peaks West is as follows:
  • White: 43.4% (19,977 residents)
  • Black or African American: 3.2% (1,473 residents)
  • American Indian and Alaska Native: 0.7% (319 residents)
  • Asian: 32.1% (14,742 residents)
  • Native Hawaiian and Other Pacific Islander: 0.2% (67 residents)
  • Two or More Races: 14.2% (6,520 residents)
  • Other: 6.3% (2,888 residents)

What percentage of the population in District 4 - Twin Peaks West are U.S.-born citizens?

U.S.-born citizens represent 68.5% of the population in District 4 - Twin Peaks West.

How many housing units are there in District 4 - Twin Peaks West?

There are 18,407 housing units in District 4 - Twin Peaks West, reflecting a -0.7% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in District 4 - Twin Peaks West and what is the average household size?

District 4 - Twin Peaks West has a total of 17,190 households, with an average of 2 people in each.

What is the median household income in District 4 - Twin Peaks West?

District 4 - Twin Peaks West has a median household income of $199,211, representing a +0.2% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for District 4 - Twin Peaks West?

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

Job types:
  • White-collar workers: 92.4% (22,543 residents)
  • Blue-collar workers: 7.6% (1,850 residents)

Places of employment:
  • Self-employed: 12.4% (3,022 residents)
  • Private companies: 60.2% (14,683 residents)
  • Governmental workers: 15.3% (3,739 residents)
  • Not-for-profit companies: 12.1% (2,949 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