San Dimas Flag

San Dimas

County Seat:
No
Area (mi²):
15.034
State:
California

San Dimas is a city located in Los Angeles County, California. San Dimas has a 2025 population of 31,977. San Dimas is currently declining at a rate of -1.73% annually and its population has decreased by -8.1% since the most recent census, which recorded a population of 34,797 in 2020.

The average household income in San Dimas is $135,605 with a poverty rate of 9.19%.The median age in San Dimas is 42.8 years: 42.9 years for males, and 42.6 years for females.

32K
Total Population
2,127
Density (mi²)
-564 -1.73%
Growth

San Dimas Population

San Dimas Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of San Dimas includes 46.19% White, 17.59% Asian, 12.23% other race, 3.43% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White15,74946.19%
Two or more races6,52419.13%
Asian5,99717.59%
Other race4,17012.23%
Black or African American1,1713.43%
Native American4031.18%
Native Hawaiian or Pacific Islander850.25%

San Dimas Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

San Dimas' average per capita income is $58,831. Household income levels show a median of $105,833. The poverty rate stands at 9.19%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$145,189-
Families$124,269$157,415
Households$105,833$135,605
Non Families$50,893$68,582

$58,831

Average Income

$105,833

Median Household Income

9.19%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)