topographic

Unincorporated Alameda County

152,107
Total Population in 2020
In 2020, Unincorporated Alameda County was home to 152,107 people. Residents were a majority working age. The population was diverse, with no racial group in the majority, and there were more women than men.

Most Populous Demographics

CategoryDemographicTotalPercentage
Age18-6495,69263%
SexFemale77,54551%
Race and Hispanic or LatinoHispanic or Latino (any race)48,89732%

Age

In 2020, Unincorporated Alameda County's population was majority working-age adults, while those under age 18 were a moderately larger share than those 65 and older. Looking at 10-year age ranges, 30-39 was the largest group.

Population by Age Range

05.5k11k16.5k22k0-910-1920-2930-3940-4950-5960-6970-7980+11%13%13%14%13%14%12%6%3%
05.5k11k16.5k22k11%13%13%14%13%14%12%6%3%0-910-1920-2930-3940-4950-5960-6970-7980+
/View Population by Age Range dynamic table

Population by Age Group

63%
18-64
    33,067
    Under 18
    95,692
    18-64
    23,348
    65 and over
/View Population by Age Group dynamic table

Table: Population by Age Range

Age RangePopulation in Unincorporated Alameda County
TotalPercentage
0-917,41811%
10-1919,20613%
20-2919,18213%
30-3921,99014%
40-4920,16813%
50-5920,63414%
60-6918,47512%
70-799,7316%
80+5,3033%

Table: Population by Age Group

Age GroupPopulation in Unincorporated Alameda County
TotalPercentage
Under 1833,06722%
18-6495,69263%
65 and over23,34815%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.

Sex and Age

In 2020, females outnumbered males by a moderate amount in Unincorporated Alameda County. Females 30-39 were the largest group by age, followed by males 30-39 and females 50-59. The biggest gap was in the 80-and-older age group, where females were the larger share.

Population by Sex

51%
Female
    74,562
    Male
    77,545
    Female
/View Population by Sex dynamic table

Population by Sex and Age

03k6k9k12k0-910-1920-2930-3940-4950-5960-6970-7980+8,9019,8599,66510,8249,73810,1398,8814,4752,0808,5179,3479,51711,16610,43010,4959,5945,2563,223
03k6k9k12k0-910-1920-2930-3940-4950-5960-6970-7980+8,9019,8599,66510,8249,73810,1398,8814,4752,0808,5179,3479,51711,16610,43010,4959,5945,2563,223
12k9k6k3k03k6k9k12k0-910-1920-2930-3940-4950-5960-6970-7980+8,9019,8599,66510,8249,73810,1398,8814,4752,0808,5179,3479,51711,16610,43010,4959,5945,2563,223
/View Population by Sex and Age dynamic table
Male
Female

Table: Population by Sex

SexUnincorporated Alameda County
TotalPercentage
Male74,56249%
Female77,54551%

Table: Population by Sex and Age

Sex and AgeUnincorporated Alameda County
TotalPercentage
Male74,56249%
Male: 0-98,9016%
Male: 10-199,8596%
Male: 20-299,6656%
Male: 30-3910,8247%
Male: 40-499,7386%
Male: 50-5910,1397%
Male: 60-698,8816%
Male: 70-794,4753%
Male: 80+2,0801%
Female77,54551%
Female: 0-98,5176%
Female: 10-199,3476%
Female: 20-299,5176%
Female: 30-3911,1667%
Female: 40-4910,4307%
Female: 50-5910,4957%
Female: 60-699,5946%
Female: 70-795,2563%
Female: 80+3,2232%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories. 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

32%
Hispanic or Latino (any race)
In 2020, Unincorporated Alameda County had a diverse population with no race/ethnicity being a majority. Hispanic and white people were the largest groups, while Asian and Black residents were the next biggest segments of the population.

Population by Race and Hispanic or Latino

015k30k45k60kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)28%8%<1%25%<1%6%32%
015k30k45k60kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)28%8%<1%25%<1%6%32%
015k30k45k60kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multiracial*Hispanic or Latino (any race)28%8%<1%25%<1%6%32%
/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 Alameda County
TotalPercentage
White41,88828%
Black or African American12,2968%
American Indian / Alaska Native357<1%
Asian38,73125%
Native Hawaiian / Pacific Islander1,328<1%
Other / Multiracial8,6106%
Hispanic or Latino (any race)48,89732%
* 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 2020, Demographic and Housing Characteristics File (DHC), 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.