San Bernardino County, CA population by gender
The table below shows San Bernardino County's population by gender
Gender | Population | % of Total Population |
---|---|---|
Male | 1,085,601 | 50.00% |
Female | 1,085,470 | 50.00% |
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San Bernardino County, CA population by gender, in percentage
The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.00% females and 50.00% males in San Bernardino County, CA.
The above comparison shows there are more females than males in the San Bernardino County county as compared to the nation.

San Bernardino County, CA gender ratio
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
In San Bernardino County, CA, there are more men than women. The San Bernardino County, CA gender ratio is 1:100 i.e. 1 men to 100 women (1.000).
This ratio is higher than the national average of 98:100 i.e 98 men to 100 women (0.980).
San Bernardino County, CA gender ratio by age
In San Bernardino County, CA, the sex ratio for children under 18 years is 104.9 boys per 100 girls (104.9:100).Having said that, for seniors aged 80 and older, there are 64.3 males per 100 females (64.3:100).
On the national level, the sex ratio (male per 100 females) for under 18 age group is 104.8:100, and 64.5:100 for the senior population 80 years and older.
The table below lists the male and female population in each age group along with the gender ratio for San Bernardino County, CA.
Age Group | Population (Male) | Population (Female) | Gender Ratio |
---|---|---|---|
Under 5 years | 76,408 | 72,999 | 1.05 |
5 to 9 years | 79,626 | 78,023 | 1.02 |
10 to 14 years | 86,923 | 81,062 | 1.07 |
15 to 19 years | 82,576 | 76,863 | 1.07 |
20 to 24 years | 82,472 | 76,453 | 1.08 |
25 to 29 years | 86,973 | 83,400 | 1.04 |
30 to 34 years | 81,420 | 78,313 | 1.04 |
35 to 39 years | 75,585 | 73,585 | 1.03 |
40 to 44 years | 68,661 | 68,364 | 1.00 |
45 to 49 years | 66,088 | 67,415 | 0.98 |
50 to 54 years | 65,234 | 65,576 | 0.99 |
55 to 59 years | 63,353 | 64,882 | 0.98 |
60 to 64 years | 56,731 | 61,179 | 0.93 |
65 to 69 years | 43,392 | 48,207 | 0.90 |
70 to 74 years | 30,756 | 34,802 | 0.88 |
75 to 79 years | 18,647 | 22,078 | 0.84 |
80 to 84 years | 10,826 | 15,177 | 0.71 |
85 years and over | 9,930 | 17,092 | 0.58 |
Interesting observation from the above table:
- The sex ratio at birth is 1.047 i.e. 104.7 boys per 100 girls.
- For the 60-64 years, the sex ratio is 0.927 i.e. 7.3 less men per 100 women.
- While for senior most population of 85+ age group, the sex ratio is 0.581 i.e. 58.1 senior men per 100 senior women.
San Bernardino County, CA population by gender & age
For male population, the largest age group is 25-29 years with a population of 86,973. Whereas, for the female population, the largest age group is 25-29 years with a population of 83,400.
As you can note from the above numbers, the largest age group for men and women are same. The above comparison also shows that there are 3,573 less females than males, in the age group 25-29 years (The largest age group for both of the genders).

Under the age of 5, there are 76,408 boys and 72,999 girls in San Bernardino County, CA. Thus there are 3,409 more boys than girls under the age of 5.
Between the age group of 60-64 years, there are 56,731 males and 61,179 females in San Bernardino County, CA. Thus there are 4,448 less males than females between the age of 60 and 64 years.
For the senior most age group of 85+ years, there are 9,930 males and 17,092 females.
Things to know
What percent of San Bernardino County, CA is female?
According to the ACS survey, of the total San Bernardino County, CA population of 2.17 million, 50.00% percent are females.
What percentage of San Bernardino County, CA is male?
According to the ACS survey, of the total San Bernardino County, CA population of 2.17 million, 50.00% percent are males.
What is the male to female ratio in San Bernardino County, CA?
In San Bernardino County, CA, the male to female ratio is 1:100 i.e. 1 men to 100 women (1.000).
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates