Placer County, CA Population

Overview

400,330

Total Population

42.1

Median age

50.81%

Female population %

96.8:100

Gender ratio (M:F)

55-59 years

Largest age group

60.4

Total dependency ratio

White

Largest racial group

58,635

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Placer County is 42.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Placer County's population under 18 was 22.34%, compared to the 22.51% nationwide.
Placer County's elderly or the senior population (over 65 age) was 19.43% as compared to 16.04% nationwide.
Of the total population in Placer County, 18.22% were under the age of 15, 16.56% aged 15 to 29, 45.80% aged 30 to 64, 16.97% aged 65 to 84, and 2.45% were 85 years of age and older.

There are 6,506 more females than males in Placer County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.81% females and 49.19% males in Placer County, CA.
The Placer County, CA gender ratio is 96.8:100 i.e. 96.8 men to 100 women (0.968).
For male population, the largest age group is 55-59 years with a population of 14,354.
For the female population, the largest age group is 60-64 years with a population of 14,286.

Placer County's population has become increasingly diverse:

Racial distribution of Placer County population: 77.83% are White, 1.60% are Black or African American, 0.49% are American Indian and Alaska Native, 8.50% are Asian, 0.20% are Native Hawaiian and other Pacific Islander, 3.38% are some other race and 8% are multiracial.
Placer County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 58,635 is Hispanic or Latino (of any race), and 341,695 (85.35% of the total population) is Non-Hispanic.
The largest racial group in Placer County is White with a population of 311,591 (77.83% of the total population).

Placer County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 417,772 in the year 2022
From 2000 to 2010, Placer County's population increased by 98,878 (39.37%), as compared to the national growth of 9.63%.
From 2010 to 2020, Placer County's population increased by 55,882 (15.97%), 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, Placer County's population was lowest in year 2000 at 251,129.