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

Total population
33,789
-0.9% year-over-year change
Median household income
$105,321/yr
-0.5% year-over-year change
Housing units
12,370
-0.4% year-over-year change

San Dimas population

How many people live in San Dimas

San Dimas is home to 33,789 residents, according to the most recent Census data. Gender-wise, 48.1% of San Dimas locals are male, and 51.9% are female.

Total population
33,789
-0.9% year-over-year change
Gender ratio
Male
48.1%
16,244
Female
51.9%
17,545
Value Percent YoY change
Male 16,244 48.1% -0.6%
Female 17,545 51.9% -1.2%
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 San Dimas is 43, with the population distributed as follows: about 17.2% are children under 15, then 10.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 24.2% of the population, while another 28.2% fall into the 45 to 64 bracket. Finally, around 20.3% are 65 or older.

Median age
43.3
Age breakdown
Under 15
17.2%
15 to 24
10.1%
25 to 44
24.2%
45 to 64
28.2%
Over 65
20.3%
Value Percent YoY change
Under 15 5,808 17.2% -3.3%
15 to 24 3,427 10.1% -3.3%
25 to 44 8,177 24.2% -2.4%
45 to 64 9,511 28.2% -1.0%
Over 65 6,866 20.3% 4.6%
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 Dimas, 77.3% of the population are US-born citizens, while 17% have gained naturalized citizenship. At the same time, 5.6% of residents are non-citizens. As for race, 40.9% of locals are Caucasian, 3.6% are African American and 16.5% have Asian roots. Another 1.1% are Indigenous American, 0.3% are Pacific Islanders, while 13.2% identify as another race. There’s also a share of 24.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
77.3%
Non-U.S.-born citizens
17%
Non-citizens
5.6%
Value Percent YoY change
U.S.-born citizens 26,134 77.3% -0.0%
Non-U.S.-born citizens 5,755 17% 0.2%
Non-citizens 1,900 5.6% -14.0%
Racial breakdown
White
40.9%
Black or African American
3.6%
American Indian and Alaska Native
1.1%
Asian
16.5%
Native Hawaiian and other Pacific Islander
0.3%
Two or more races
24.5%
Other
13.2%
Value Percent
White 13,822 40.9%
Black or African American 1,199 3.6%
American Indian and Alaska Native 360 1.1%
Asian 5,582 16.5%
Native Hawaiian and other Pacific Islander 94 0.3%
Two or more races 8,271 24.5%
Other 4,461 13.2%

Households in San Dimas

A peek inside San Dimas households

San Dimas has 12,071 households, with an average of 3 members in each. Of these, 74.7% are families, while the remaining 25.3% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
12,071
-1.4% year-over-year change
Average people per household
3
Non-family households
3,057
Family households
9,014
Value Percent YoY change
Non-family households 3,057 25.3% -9.0%
Family households 9,014 74.7% 1.5%
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 Dimas

The housing landscape of San Dimas

San Dimas's housing consists of 12,370 units, with 61.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 10% 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 8.6% of the housing landscape.

Housing units
12,370
-0.4% year-over-year change
Housing types
Value Percent
1 unit, detached 7,620 61.6%
1 unit, attached 1,241 10%
2 units 119 1%
3 or 4 units 401 3.2%
5 to 9 units 430 3.5%
10 to 19 units 551 4.4%
20 to 49 units 232 1.9%
50 or more units 706 5.7%
Mobile home 1,070 8.6%
Homes built since 2020
102
325.0% year-over-year change

The age of buildings in San Dimas

In San Dimas, the median construction year is 1976. About 5.3% of homes were built before the 1940s, with another 1.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 4.2% of homes were added from 2000 to 2009, 3.3% between 2010 and 2019, and 0.8% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 661 5.3% 7.3%
Built between 1940 and 1949 231 1.9% 7.9%
Built between 1950 and 1959 958 7.7% -17.6%
Built between 1960 and 1969 1,993 16.1% 3.0%
Built between 1970 and 1979 3,983 32.2% 0.1%
Built between 1980 and 1989 2,624 21.2% -5.8%
Built between 1990 and 1999 894 7.2% 18.1%
Built between 2000 and 2009 515 4.2% -1.5%
Built between 2010 and 2019 409 3.3% -3.5%
Built in 2020 or later 102 0.8% 325.0%
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 Dimas occupancy rates

Out of the 12,071 occupied housing units in San Dimas, 72.4% are owner-occupied, while 27.6% are lived in by tenants. Meanwhile, 2.4% of all homes on the local market sit vacant.

Occupied housing units
12,071
-1.4% year-over-year change
Occupancy breakdown
Renter occupied
3,327
Owner occupied
8,744
Value Percent YoY
change
Renter occupied 3,327 27.6% -4.9%
Owner occupied 8,744 72.4% 0.1%
Unoccupied housing units
2.4%
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 Dimas housing costs

Housing costs in San Dimas come to a median of $2,347 per month, while tenants specifically pay a median gross rent of $2,278.

Median housing costs per month
$2,347/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 Dimas
$2,278/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 Dimas

San Dimas education at a glance

About 25.6% of the population in San Dimas went to high school, while 25.9% pursued college studies. Another 7.4% earned an associate degree and 21.8% hold a bachelor’s. Meanwhile, 16.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 879 3.3% 6.3%
High school diploma 6,902 25.6% -1.9%
College diploma 6,985 25.9% 4.5%
Associate degree 1,996 7.4% -15.7%
Bachelor's degree 5,880 21.8% -2.6%
Graduate degree 4,339 16.1% 4.2%
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 Dimas

How much people earn in San Dimas

The average annual household income in San Dimas was $140,783 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +3.8% change from the previous year. At the same time, the median income stood at $105,321, reflecting a -0.5% shift over the same period.

Average household income in San Dimas
$140,783/year
3.8% year-over-year change
Median household income in San Dimas
$105,321/year
-0.5% year-over-year change

San Dimas income by age

In San Dimas, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $126,481. Those with someone between 45 and 64 in charge, often well established professionally, earn $136,223 overall. Overall, 90.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $126,481 2.2%
45 - 64 $136,223 3.0%
Over 65 $67,179 28.2%
Above poverty level
30,027
Below poverty level
3,157
Value Percent YoY
change
Above poverty level 30,027 90.5% -1.2%
Below poverty level 3,157 9.5% 2.1%

Average renter income in San Dimas

To get a better sense of what renters earn on average in San Dimas, their median household income was $74,833 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 36.5%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$74,833
Rent-to-income ratio
36.5%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in San Dimas

Workforce and job types in San Dimas

The job market in San Dimas is powered by 16,663 working residents, spread across a range of industries and roles. 81.7% of the working population are employed in professional or administrative positions, while 18.3% are in hands-on or service-based jobs. Also, 14.5% run their own businesses, 57.8% are employed by private companies, and 19.4% work in the public sector.

Workforce demographics

Working population
16,663
0.6% year-over-year change
White collar
13,615
Blue collar
3,048
Value Percent YoY change
White collar 13,615 81.7% 0.6%
Blue collar 3,048 18.3% 0.6%
Employer type
Self employees
14.5%
Private companies
57.8%
Governmental workers
19.4%
Not for profit companies
8.2%
Value Percent YoY change
Self employees 2,416 14.5% 7.8%
Private companies 9,640 57.8% -1.2%
Governmental workers 3,240 19.4% 1.6%
Not for profit companies 1,367 8.2% -1.0%
Unemployment rate
4.6%
-6.5% year-over-year change

Available workforce

The unemployment rate in San Dimas stands at 4.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in San Dimas

How people get around in San Dimas

Commuting methods vary: 81.1% of residents travel by personal vehicle and 0.5% 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 13,092 81.1% -0.7%
Taxicab 17 0.1% N/A
Bus or trolleybus 56 0.4% -6.7%
Railroad 8 0% -81.0%
Motorcycle 9 0.1% -18.2%
Walk 81 0.5% -43.0%
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 Dimas by zipcode?

Zipcode Population Number of households Median income Average income
91768 34,200 8,831 $76,041 $92,327
91773 33,598 12,004 $105,338 $140,970

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FAQs about San Dimas demographics 

What is the total population of San Dimas?

San Dimas has a total population of 33,789 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 -0.9% compared to a year ago.

What is the gender ratio in San Dimas?

The gender ratio in San Dimas is as follows:
  • 48.1% males (16,244 residents)
  • 51.9% females (17,545 residents)

What is the median age in San Dimas?

The median age in San Dimas is 43.3.

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

The age distribution in San Dimas is as follows:
  • Under 15: 17.2% (5,808 residents)
  • Ages 15-24: 10.1% (3,427 residents)
  • Ages 25-44: 24.2% (8,177 residents)
  • Ages 45-64: 28.2% (9,511 residents)
  • Over 65: 20.3% (6,866 residents)

What is the racial and ethnic makeup of San Dimas?

The racial and ethnic makeup of San Dimas is as follows:
  • White: 40.9% (13,822 residents)
  • Black or African American: 3.6% (1,199 residents)
  • American Indian and Alaska Native: 1.1% (360 residents)
  • Asian: 16.5% (5,582 residents)
  • Native Hawaiian and Other Pacific Islander: 0.3% (94 residents)
  • Two or More Races: 24.5% (8,271 residents)
  • Other: 13.2% (4,461 residents)

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

U.S.-born citizens represent 77.3% of the population in San Dimas.

How many housing units are there in San Dimas?

There are 12,370 housing units in San Dimas, 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 San Dimas and what is the average household size?

San Dimas has a total of 12,071 households, with an average of 3 people in each.

What is the median household income in San Dimas?

San Dimas has a median household income of $105,321, representing a -0.5% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for San Dimas?

The employment rate is 95.4% in San Dimas, with a workforce of 16,663 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 81.7% (13,615 residents)
  • Blue-collar workers: 18.3% (3,048 residents)

Places of employment:
  • Self-employed: 14.5% (2,416 residents)
  • Private companies: 57.8% (9,640 residents)
  • Governmental workers: 19.4% (3,240 residents)
  • Not-for-profit companies: 8.2% (1,367 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