San Quentin, CA demographics:
population, income, and more

Total population
2,396
9.7% year-over-year change
Median household income
$115,261/yr
5.9% year-over-year change
Housing units
322
37.6% year-over-year change

San Quentin population

How many people live in San Quentin

San Quentin is home to 2,396 residents, according to the most recent Census data. Gender-wise, 85.2% of San Quentin locals are male, and 14.8% are female.

Total population
2,396
9.7% year-over-year change
Gender ratio
Male
85.2%
2,041
Female
14.8%
355
Value Percent YoY change
Male 2,041 85.2% 6.6%
Female 355 14.8% 31.5%
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 San Quentin is 45, with the population distributed as follows: about 4.5% are children under 15, then 4.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 32.6% of the population, while another 34.5% fall into the 45 to 64 bracket. Finally, around 23.5% are 65 or older.

Median age
45
Age breakdown
Under 15
4.5%
15 to 24
4.9%
25 to 44
32.6%
45 to 64
34.5%
Over 65
23.5%
Value Percent YoY change
Under 15 108 4.5% 0.9%
15 to 24 118 4.9% -31.8%
25 to 44 780 32.6% 11.9%
45 to 64 826 34.5% 12.1%
Over 65 564 23.5% 20.0%
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 San Quentin, 77% of the population are US-born citizens, while 6.5% have gained naturalized citizenship. At the same time, 16.5% of residents are non-citizens. As for race, 35.4% of locals are Caucasian, 20.2% are African American and 5.4% have Asian roots. Another 2.8% are Indigenous American, 0.7% are Pacific Islanders, while 20.8% identify as another race. There’s also a share of 14.6% that includes residents with two or more races.

Citizenship
U.S.-born citizens
77%
Non-U.S.-born citizens
6.5%
Non-citizens
16.5%
Value Percent YoY change
U.S.-born citizens 1,845 77% 12.3%
Non-U.S.-born citizens 155 6.5% 3.3%
Non-citizens 396 16.5% 1.0%
Racial breakdown
White
35.4%
Black or African American
20.2%
American Indian and Alaska Native
2.8%
Asian
5.4%
Native Hawaiian and other Pacific Islander
0.7%
Two or more races
14.6%
Other
20.8%
Value Percent
White 849 35.4%
Black or African American 485 20.2%
American Indian and Alaska Native 68 2.8%
Asian 129 5.4%
Native Hawaiian and other Pacific Islander 16 0.7%
Two or more races 349 14.6%
Other 499 20.8%

Households in San Quentin

A peek inside San Quentin households

San Quentin has 282 households, with an average of 2 members in each. Of these, 25.2% are families, while the remaining 74.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
282
43.9% year-over-year change
Average people per household
2
Non-family households
211
Family households
71
Value Percent YoY change
Non-family households 211 74.8% 66.1%
Family households 71 25.2% 2.9%
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 San Quentin

The housing landscape of San Quentin

San Quentin's housing consists of 322 units, with 85.1% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.5% and offer a more compact, shared living style.

Housing units
322
37.6% year-over-year change
Housing types
Value Percent
1 unit, detached 274 85.1%
1 unit, attached 8 2.5%
2 units 6 1.9%
3 or 4 units 9 2.8%
5 to 9 units 8 2.5%
10 to 19 units 6 1.9%
20 to 49 units 7 2.2%
50 or more units 4 1.2%
Homes built since 2020
0
% year-over-year change

The age of buildings in San Quentin

In San Quentin, the median construction year is 1952. About 41.9% of homes were built before the 1940s, with another 2.5% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 135 41.9% 181.2%
Built between 1940 and 1949 8 2.5% 0.0%
Built between 1950 and 1959 104 32.3% -1.9%
Built between 1960 and 1969 35 10.9% 12.9%
Built between 1970 and 1979 17 5.3% -5.6%
Built between 1980 and 1989 10 3.1% 0.0%
Built between 1990 and 1999 6 1.9% 0.0%
Built between 2000 and 2009 5 1.6% 25.0%
Built between 2010 and 2019 2 0.6% 100.0%
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.

San Quentin occupancy rates

Out of the 282 occupied housing units in San Quentin, 46.8% are owner-occupied, while 53.2% are lived in by tenants. Meanwhile, 12.4% of all homes on the local market sit vacant.

Occupied housing units
282
43.9% year-over-year change
Occupancy breakdown
Renter occupied
150
Owner occupied
132
Value Percent YoY
change
Renter occupied 150 53.2% 1.4%
Owner occupied 132 46.8% 180.8%
Unoccupied housing units
12.4%
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.

San Quentin housing costs

Housing costs in San Quentin come to a median of $3,266 per month, while tenants specifically pay a median gross rent of $2,256.

Median housing costs per month
$3,266/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 San Quentin
$2,256/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 San Quentin

San Quentin education at a glance

About 43% of the population in San Quentin went to high school, while 26.9% pursued college studies. Another 12.3% earned an associate degree and 7.1% hold a bachelor’s. Meanwhile, 3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 176 7.8% 38.6%
High school diploma 972 43% 0.1%
College diploma 608 26.9% 15.4%
Associate degree 279 12.3% -11.7%
Bachelor's degree 160 7.1% 190.9%
Graduate degree 68 3% 11.5%
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 San Quentin

How much people earn in San Quentin

The average annual household income in San Quentin was $125,384 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +208.7% change from the previous year. At the same time, the median income stood at $115,261, reflecting a +5.9% shift over the same period.

Average household income in San Quentin
$125,384/year
208.7% year-over-year change
Median household income in San Quentin
$115,261/year
5.9% year-over-year change

San Quentin income by age

In San Quentin, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $97,489. Those with someone between 45 and 64 in charge, often well established professionally, earn $156,481 overall. Overall, 83.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $97,489 -3.1%
45 - 64 $156,481 25.9%
Over 65 $112,083 2.1%
Above poverty level
488
Below poverty level
97
Value Percent YoY
change
Above poverty level 488 83.4% 21.4%
Below poverty level 97 16.6% 1.0%

Employment in San Quentin

Workforce and job types in San Quentin

62.5% of the working population are employed in professional or administrative positions, while 37.5% are in hands-on or service-based jobs. Also, 29.4% run their own businesses, 57.2% are employed by private companies, and 9.6% work in the public sector.

Workforce demographics

White collar
183
Blue collar
110
Value Percent YoY change
White collar 183 62.5% -1.1%
Blue collar 110 37.5% 0.9%
Employer type
Self employees
29.4%
Private companies
57.2%
Governmental workers
9.6%
Not for profit companies
3.8%
Value Percent YoY change
Self employees 86 29.4% -5.5%
Private companies 167 57.2% -1.2%
Governmental workers 28 9.6% 16.7%
Not for profit companies 11 3.8% 10.0%

Transportation in San Quentin

How people get around in San Quentin

Commuting methods vary: 85% of residents travel by personal vehicle and 10.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 164 85% -0.6%
Bus or trolleybus 6 3.1% 0.0%
Ferryboat 1 0.5% 0.0%
Bicycle 1 0.5% 0.0%
Walk 21 10.9% 10.5%
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 San Quentin by zipcode?

Zipcode Population Number of households Median income Average income
94901 41,307 15,631 $115,330 $190,629
94964 2,344 204 $115,192 $106,592

Explore more communities

FAQs about San Quentin demographics 

What is the total population of San Quentin?

San Quentin has a total population of 2,396 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 +9.7% compared to a year ago.

What is the gender ratio in San Quentin?

The gender ratio in San Quentin is as follows:
  • 85.2% males (2,041 residents)
  • 14.8% females (355 residents)

What is the median age in San Quentin?

The median age in San Quentin is 45.

What is the age distribution of the population in San Quentin?

The age distribution in San Quentin is as follows:
  • Under 15: 4.5% (108 residents)
  • Ages 15-24: 4.9% (118 residents)
  • Ages 25-44: 32.6% (780 residents)
  • Ages 45-64: 34.5% (826 residents)
  • Over 65: 23.5% (564 residents)

What is the racial and ethnic makeup of San Quentin?

The racial and ethnic makeup of San Quentin is as follows:
  • White: 35.4% (849 residents)
  • Black or African American: 20.2% (485 residents)
  • American Indian and Alaska Native: 2.8% (68 residents)
  • Asian: 5.4% (129 residents)
  • Native Hawaiian and Other Pacific Islander: 0.7% (16 residents)
  • Two or More Races: 14.6% (349 residents)
  • Other: 20.8% (499 residents)

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

U.S.-born citizens represent 77% of the population in San Quentin.

How many housing units are there in San Quentin?

There are 322 housing units in San Quentin, reflecting a +37.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

San Quentin has a total of 282 households, with an average of 2 people in each.

What is the median household income in San Quentin?

San Quentin has a median household income of $115,261, representing a +5.9% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for San Quentin?

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

Job types:
  • White-collar workers: 62.5% (183 residents)
  • Blue-collar workers: 37.5% (110 residents)

Places of employment:
  • Self-employed: 29.4% (86 residents)
  • Private companies: 57.2% (167 residents)
  • Governmental workers: 9.6% (28 residents)
  • Not-for-profit companies: 3.8% (11 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