Solano County, CA Population

Overview

451,432

Total Population

38.5

Median age

49.96%

Female population %

100.1:100

Gender ratio (M:F)

30-34 years

Largest age group

52.4

Total dependency ratio

White

Largest racial group

124,118

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Solano County's population is old compared to the rest of the country:

The median age in Solano County is 38.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Solano County's population under 18 was 22.26%, compared to the 22.51% nationwide.
Solano County's elderly or the senior population (over 65 age) was 15.88% as compared to 16.04% nationwide.
Of the total population in Solano County, 18.50% were under the age of 15, 19.48% aged 15 to 29, 46.14% aged 30 to 64, 14.17% aged 65 to 84, and 1.71% were 85 years of age and older.

There are 326 less females than males in Solano County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.96% females and 50.04% males in Solano County, CA.
The Solano County, CA gender ratio is 100.1:100 i.e. 100.1 men to 100 women (1.001).
For male population, the largest age group is 25-29 years with a population of 16,896.
For the female population, the largest age group is 30-34 years with a population of 15,884.

Solano County's population has become increasingly diverse:

Racial distribution of Solano County population: 48.49% are White, 13.41% are Black or African American, 0.67% are American Indian and Alaska Native, 15.63% are Asian, 0.93% are Native Hawaiian and other Pacific Islander, 9.94% are some other race and 10.93% are multiracial.
Solano County's racial breakdown clearly shows that there is no majority of any race in the county.
By ethnicity, 124,118 is Hispanic or Latino (of any race), and 327,314 (72.51% of the total population) is Non-Hispanic.
The largest racial group in Solano County is White with a population of 218,893 (48.49% of the total population).

Solano County's population has already reached its peak and is showing a trend of decline:

The peak population was 452,698 in the year 2020
From 2000 to 2010, Solano County's population increased by 16,962 (4.27%), as compared to the national growth of 9.63%.
From 2010 to 2020, Solano County's population increased by 38,735 (9.36%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Solano County's population was lowest in year 2000 at 397,001.