topographic

Unincorporated San Mateo County

61,222
Total Population in 2010
In 2010, Unincorporated San Mateo County was home to 61,222 people. Residents were a majority working age. The population was majority white, with more men than women.

Most Populous Demographics

CategoryDemographicTotalPercentage
Age18-6438,88964%
SexMale30,96651%
Race and Hispanic or LatinoWhite (Not Hispanic or Latino)33,57155%

Age

In 2010, Unincorporated San Mateo County's population was majority working-age adults, while those under age 18 were a considerably larger share than those 65 and older. Looking at 10-year age ranges, 40-49 was the largest group.

Population by Age Range

02.5k5k7.5k10k0-910-1920-2930-3940-4950-5960-6970-7980+14%13%10%12%16%16%11%5%3%
02.5k5k7.5k10k14%13%10%12%16%16%11%5%3%0-910-1920-2930-3940-4950-5960-6970-7980+
/View Population by Age Range dynamic table

Population by Age Group

64%
18-64
    14,792
    Under 18
    38,889
    18-64
    7,541
    65 and over
/View Population by Age Group dynamic table

Table: Population by Age Range

Age RangePopulation in Unincorporated San Mateo County
TotalPercentage
0-98,29814%
10-197,76113%
20-296,37210%
30-397,61212%
40-499,85816%
50-599,75016%
60-696,71711%
70-792,9595%
80+1,8953%

Table: Population by Age Group

Age GroupPopulation in Unincorporated San Mateo County
TotalPercentage
Under 1814,79224%
18-6438,88964%
65 and over7,54112%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2010, Summary File 1 (SF1), P12 Sex by Age. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.

Sex and Age

In 2010, males outnumbered females by a moderate amount in Unincorporated San Mateo County. Females 40-49 were the largest group by age, followed by males 50-59 and males 40-49. The biggest gap was in the 20-29 age group, where males were the larger share.

Population by Sex

51%
Male
    30,966
    Male
    30,256
    Female
/View Population by Sex dynamic table

Population by Sex and Age

01.5k3k4.5k6k0-910-1920-2930-3940-4950-5960-6970-7980+4,2964,0293,4773,8114,8874,9593,3241,4327514,0023,7322,8953,8014,9714,7913,3931,5271,144
01.5k3k4.5k6k0-910-1920-2930-3940-4950-5960-6970-7980+4,2964,0293,4773,8114,8874,9593,3241,4327514,0023,7322,8953,8014,9714,7913,3931,5271,144
6k4.5k3k1.5k01.5k3k4.5k6k0-910-1920-2930-3940-4950-5960-6970-7980+4,2964,0293,4773,8114,8874,9593,3241,4327514,0023,7322,8953,8014,9714,7913,3931,5271,144
/View Population by Sex and Age dynamic table
Male
Female

Table: Population by Sex

SexUnincorporated San Mateo County
TotalPercentage
Male30,96651%
Female30,25649%

Table: Population by Sex and Age

Sex and AgeUnincorporated San Mateo County
TotalPercentage
Male30,96651%
Male: 0-94,2967%
Male: 10-194,0297%
Male: 20-293,4776%
Male: 30-393,8116%
Male: 40-494,8878%
Male: 50-594,9598%
Male: 60-693,3245%
Male: 70-791,4322%
Male: 80+7511%
Female30,25649%
Female: 0-94,0027%
Female: 10-193,7326%
Female: 20-292,8955%
Female: 30-393,8016%
Female: 40-494,9718%
Female: 50-594,7918%
Female: 60-693,3936%
Female: 70-791,5272%
Female: 80+1,1442%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2010, Summary File 1 (SF1), P12 Sex by Age. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.

Race and Hispanic or Latino

55%
White (Not Hispanic or Latino)
In 2010, Unincorporated San Mateo County had a majority white population. Hispanic residents also made up a significant segment, while Asian and other/multiracial people were the next largest groups.

Population by Race and Hispanic or Latino

08.5k17k25.5k34kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)55%<1%<1%10%<1%3%30%
08.5k17k25.5k34kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)55%<1%<1%10%<1%3%30%
08.5k17k25.5k34kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)55%<1%<1%10%<1%3%30%
/View Population by Race and Hispanic or Latino dynamic table

Table: Population by Race and Hispanic or Latino

Race and Hispanic or LatinoPopulation in Unincorporated San Mateo County
TotalPercentage
White33,57155%
Black or African American578<1%
American Indian / Alaska Native112<1%
Asian6,06010%
Native Hawaiian / Pacific Islander371<1%
Other / Multiracial1,9253%
Hispanic or Latino (any race)18,60530%
* Categorized as Not Hispanic. This means that all the racial groups marked with an asterisk — White, Black or African American, American Indian / Alaska Native, Asian, Native Hawaiian / Pacific Islander, and Other / Multiracial — do not include individuals who identify as Hispanic or Latino. The "Hispanic or Latino (any race)" category is separate, as Hispanic/Latino is considered an ethnicity rather than a racial category. For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2010, Summary File 1 (SF1), P5 Hispanic or Latino Origin by Race. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.
Population | Explore census data for over 7 million residents of the Bay Area | Bay Area Census