Sunnyvale, CA population by gender
The table below shows Sunnyvale's population by gender
Gender | Population | % of Total Population |
---|---|---|
Female | 74,377 | 47.82% |
Male | 81,173 | 52.18% |
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Sunnyvale, CA population by gender, in percentage
The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 47.82% females and 52.18% males in Sunnyvale, CA.
The above comparison shows there are less females than males in the Sunnyvale city as compared to the nation.

Sunnyvale, CA gender ratio
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
In Sunnyvale, CA, there are more men than women. The Sunnyvale, CA gender ratio is 109.1:100 i.e. 109.1 men to 100 women (1.091).
This ratio is higher than the national average of 98:100 i.e 98 men to 100 women (0.980).
Sunnyvale, CA gender ratio by age
In Sunnyvale, CA, the sex ratio for children under 18 years is 108.2 boys per 100 girls (108.2:100).Having said that, for seniors aged 80 and older, there are 63 males per 100 females (63:100).
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 Sunnyvale, CA.
Age Group | Population (Male) | Population (Female) | Gender Ratio |
---|---|---|---|
Under 5 years | 6,215 | 4,683 | 1.33 |
5 to 9 years | 4,538 | 4,571 | 0.99 |
10 to 14 years | 4,187 | 4,144 | 1.01 |
15 to 19 years | 2,771 | 2,949 | 0.94 |
20 to 24 years | 4,000 | 3,387 | 1.18 |
25 to 29 years | 9,608 | 7,658 | 1.25 |
30 to 34 years | 10,161 | 8,433 | 1.20 |
35 to 39 years | 8,594 | 6,324 | 1.36 |
40 to 44 years | 5,218 | 4,640 | 1.12 |
45 to 49 years | 4,601 | 4,939 | 0.93 |
50 to 54 years | 4,591 | 4,328 | 1.06 |
55 to 59 years | 4,722 | 4,391 | 1.08 |
60 to 64 years | 3,897 | 3,493 | 1.12 |
65 to 69 years | 2,905 | 3,271 | 0.89 |
70 to 74 years | 1,708 | 2,293 | 0.74 |
75 to 79 years | 1,428 | 1,651 | 0.86 |
80 to 84 years | 971 | 1,201 | 0.81 |
85 years and over | 1,058 | 2,021 | 0.52 |
Interesting observation from the above table:
- The sex ratio at birth is 1.327 i.e. 132.7 boys per 100 girls.
- For the 60-64 years, the sex ratio is 1.116 i.e. 11.6 more men per 100 women.
- While for senior most population of 85+ age group, the sex ratio is 0.524 i.e. 52.4 senior men per 100 senior women.
Sunnyvale, CA population by gender & age
For male population, the largest age group is 30-34 years with a population of 10,161. Whereas, for the female population, the largest age group is 30-34 years with a population of 8,433.
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 1,728 less females than males, in the age group 30-34 years (The largest age group for both of the genders).

Under the age of 5, there are 6,215 boys and 4,683 girls in Sunnyvale, CA. Thus there are 1,532 more boys than girls under the age of 5.
Between the age group of 60-64 years, there are 3,897 males and 3,493 females in Sunnyvale, CA. Thus there are 404 more males than females between the age of 60 and 64 years.
For the senior most age group of 85+ years, there are 1,058 males and 2,021 females.
Things to know
What percent of Sunnyvale, CA is female?
According to the ACS survey, of the total Sunnyvale, CA population of 155,550, 47.82% percent are females.
What percentage of Sunnyvale, CA is male?
According to the ACS survey, of the total Sunnyvale, CA population of 155,550, 52.18% percent are males.
What is the male to female ratio in Sunnyvale, CA?
In Sunnyvale, CA, the male to female ratio is 109.1:100 i.e. 109.1 men to 100 women (1.091).
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates