Hillsborough Flag

Hillsborough

County Seat:
No
Area (mi²):
6.166
State:
California

Hillsborough is a town located in San Mateo County, California. Hillsborough has a 2025 population of 11,123 . Hillsborough is currently declining at a rate of -0.43% annually and its population has decreased by -2.09% since the most recent census, which recorded a population of 11,360 in 2020.

The average household income in Hillsborough is $523,236 with a poverty rate of 3.81%. The median age in Hillsborough is 46.8 years: 44.9 years for males, and 47.7 years for females. For every 100 females there are 99.9 males.

11.1K
Total Population
1,804
Density (mi²)
-48 -0.43%
Growth

Hillsborough Population

Hillsborough Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Hillsborough includes 54.37% White, 32.87% Asian, and smaller percentages for other race, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White (54.37%)

Asian (32.87%)

Two or more races (10.54%)

Other race (1.6%)

Black or African American (0.4%)

Native Hawaiian or Pacific Islander (0.16%)

Native American (0.06%)

Race
Population
Percentage (of total)
White6,04754.37%
Asian3,65632.87%
Two or more races1,17210.54%
Other race1781.6%
Black or African American440.4%
Native Hawaiian or Pacific Islander180.16%
Native American70.06%

Hillsborough Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hillsborough's average per capita income is $150,750. Household income levels show a median of $250,001. The poverty rate stands at 3.81%.

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
Households$250,001$523,236
Families$250,001$561,062
Married Families$250,001-
Non Families-$284,409

$150,750

Average Income

$250,001

Median Household Income

3.81%

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)