Sierra County, California Population 2024

3,178

Sierra County, California's estimated 2024 population is 3,178 with a growth rate of -0.69% in the past year according to the most recent United States census data. Sierra County, California is the 57th largest county in California. The 2010 population was 3,220 and has seen a growth of -1.3% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
20293,068-22-0.71%
20283,090-22-0.71%
20273,112-22-0.7%
20263,134-22-0.7%
20253,156-22-0.69%
20243,178-22-0.69%
20233,200-22-0.68%
20223,222-72-2.19%
20213,294692.14%
20203,2252668.99%
20192,959-2-0.07%
20182,961-47-1.56%
20173,008521.76%
20162,956-34-1.14%
20152,990140.47%
20142,976-55-1.81%
20133,031-37-1.21%
20123,068-32-1.03%
20113,100-120-3.73%
20103,22000%
19903,3182457.97%
19803,07370829.94%
19702,3651185.25%
19602,247-163-6.76%
19502,410-615-20.33%
19403,02560324.9%
19302,42263935.84%
19201,783-2,315-56.49%
19104,098812.02%
19004,017-1,034-20.47%
18905,051-1,572-23.74%
18806,6231,00417.87%
18705,619-5,768-50.65%
186011,3878,319271.15%
2024 Growth Rate
-0.69% (-22)
County Website
Sierra County
County Seat
Downieville
2020 Population
3,225
Area
953 mi²
Density
3 people/mi²
Growth Since 2020
-1.46% (-47)

Population by Race

Race
Population
Percentage (of total)
White2,46990.41%
Other race1284.69%
Two or more races893.26%
Native American371.35%
Black or African American80.29%
Asian00%
Native Hawaiian or Pacific Islander00%

White

Other race

Two or more races

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Sierra County, California Population by Race

Sierra County, California Population Pyramid 2024

Sierra County, California Median Age

56

Total

55.8

Male

57.5

Female

Sierra County, California Adults

There are 2,382 adults, (942 of whom are seniors) in Sierra County, California.

Sierra County, California Age Dependency

89.7

Age Dependency Ratio

65.4

Old Age Dependency Ratio

24.2

Child Dependency Ratio

Sierra County, California Sex Ratio

Female1,38050.53%
Male1,35149.47%

Sierra County, California Population by Age

Sierra County, California Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,2062.1878.321.7
Married6602.5495.24.8
Non Family4821.0162.937.1
Male406.531585
Female248.3829.270.8

2.87

Average Family Size

2.18

Average Household Size

78.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Sierra County, California Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1195.45%
Associates Degree1034.72%
Bachelors Degree32514.88%
Graduate Degree2089.52%
High School Graduate74033.88%
Less Than 9th Grade693.16%
Some College62028.39%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Sierra County, California Educational Attainment by Sex (over 25)

Sierra County, California Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White1,9821,870479
Hispanic1598329
2+ Races897539
Native American3700
Other Race2610
Black880

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 43.82%.

Sierra County, California Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$0$70,096$0
Graduate Degree$65,333$0$52,058
High School Graduate$41,484$0$0
Less Than 9th Grade$0$21,318$0
Overall$50,536$51,716$45,197
Some College$47,337$51,660$37,308

$50,536

Average Earnings

$51,716

Average Male

$45,197

Average Female

Sierra County, California Earnings by Educational Attainment

Sierra County, California Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Sierra County, California Language

87.88% of Sierra County, California residents speak only English, while 12.12% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 9.74% of the population.

Sierra County, California Language

Sierra County, California Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White2,37932413.62%
Hispanic21910.46%

12.34%

Overall Poverty Rate

11.4%

Male Poverty Rate

13.26%

Female Poverty Rate

Poverty in Sierra County, California

The race most likely to be in poverty in Sierra County, California is White, with 13.62% below the poverty level.

The race least likely to be in poverty in Sierra County, California is Hispanic, with 0.46% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.59%. Among those working part-time, it was 4.21%, and for those that did not work, the poverty rate was 19.64%.

Sierra County, California Poverty

rate

Rate
Poverty
High School22.92%
Some College8.9%
Less Than 9th Grade7.64%
Bachelors or Greater2.45%

Sierra County, California Poverty Rate by Education

rate

Rate
Poverty
Male Employed6.55%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

Sierra County, California Poverty Rate by Employment Status and Sex

Sierra County, California Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$73,529$109,650
Households$60,000$89,329
Married Families$90,694$-999,999,999
Non Families$28,750$56,371

mean

median

Income by Household Type

Sierra County, California Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

58.2%

Overall Marriage Rate

56.9%

Male Marriage Rate

59.5%

Female Marriage Rate

Sierra County, California Married by Age and Sex

male

female

Sierra County, California Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Sierra County, California Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Sierra County, California Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

170

Number of Veterans

170

Male Veterans

0

Female Veterans

War
Veterans
Vietnam88
Second Gulf War7
First Gulf War0
Korea0
World War II0

Sierra County, California Veterans by War

count

Age Group
Veterans
65 to 7470
75+67
55 to 6418
35 to 5415
18 to 340

Sierra County, California Veterans by Age

count

Name
Veterans
% of Total
White1707.85%

Sierra County, California Veterans by Race

Sierra County, California Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

4.71%

Veteran Disability Rate

Sierra County, California Veterans by Education

LaborForceParticipation

50.4%

Labor Force Participation

44.2%

Employment Rate

12.2%

Unemployment Rate

Sierra County, California Employment by Age

LaborForceParticipation

Sierra County, California Employment by Race

LaborForceParticipation

Sierra County, California Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

71.04%

Born in Sierra County, California

97.69%

Native Born

2.31%

Foreign Born

2.31%

Non Citizen

0%

Naturalized

Place of Birth

97.69% of Sierra County, California residents were born in the United States, with 71.04% having been born in California. 2.31% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Sierra County, California Place of Birth

Sources