Benton County, Washington Population 2024

217,609

Benton County, Washington's estimated 2024 population is 217,609 with a growth rate of 1.11% in the past year according to the most recent United States census data. Benton County, Washington is the 10th largest county in Washington. The 2010 population was 176,467 and has seen a growth of 23.31% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029229,5592,3901.05%
2028227,1692,3901.06%
2027224,7792,3901.07%
2026222,3892,3901.09%
2025219,9992,3901.1%
2024217,6092,3901.11%
2023215,2192,3901.12%
2022212,8292,2301.06%
2021210,5993,1801.53%
2020207,4193,2461.59%
2019204,1732,9991.49%
2018201,1742,9451.49%
2017198,2294,6562.41%
2016193,5733,2911.73%
2015190,2823,7472.01%
2014186,5352,1731.18%
2013184,3621,9621.08%
2012182,4001,9511.08%
2011180,4493,9822.26%
2010176,46700%
1990112,5603,1162.85%
1980109,44441,90462.04%
197067,5405,4708.81%
196062,07010,70020.83%
195051,37039,317326.2%
194012,0531,10110.05%
193010,952490.45%
192010,9032,96637.37%
19107,937-221,622-96.54%
2024 Growth Rate
1.11% (2,390)
County Website
Benton County
County Seat
Prosser
2020 Population
207,419
Area
1700 mi²
Density
128 people/mi²
Growth Since 2020
4.91% (10,190)
Founded
March 8, 1905

Population by Race

Race
Population
Percentage (of total)
White157,19075.73%
Two or more races20,2569.76%
Other race18,0348.69%
Asian6,4133.09%
Black or African American3,6521.76%
Native American1,5380.74%
Native Hawaiian or Pacific Islander4770.23%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Benton County, Washington Population by Race

Benton County, Washington Population Pyramid 2024

Benton County, Washington Median Age

36.1

Total

35.3

Male

36.9

Female

Benton County, Washington Adults

There are 153,001 adults, (31,955 of whom are seniors) in Benton County, Washington.

Benton County, Washington Age Dependency

71.5

Age Dependency Ratio

26.4

Old Age Dependency Ratio

45.1

Child Dependency Ratio

Benton County, Washington Sex Ratio

Female102,92849.59%
Male104,63250.41%

Benton County, Washington Population by Age

Benton County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All75,5092.7268.131.9
Married38,7423.3684.715.3
Non Family23,5351.2549.450.6
Female9,2133.4255.844.2
Male4,0193.6244.855.2

3.26

Average Family Size

2.72

Average Household Size

68.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Benton County, Washington Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade6,4454.78%
Associates Degree14,56210.79%
Bachelors Degree26,62919.73%
Graduate Degree17,01312.61%
High School Graduate31,38123.25%
Less Than 9th Grade6,9175.13%
Some College32,00723.72%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Benton County, Washington Educational Attainment by Sex (over 25)

Benton County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White100,38895,33135,251
Hispanic23,43416,3213,725
2+ Races9,5867,9002,504
Other Race9,2755,5131,040
Asian4,4243,6932,437
Black1,9811,909662
Native American987887178
Islander32231044

The highest rate of high school graduation is among black people with a rate of 96.37%.

The highest rate of bachelors degrees is among asian people with a rate of 55.09%.

Benton County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$74,767$95,302$56,477
Graduate Degree$90,374$114,648$75,086
High School Graduate$39,750$46,743$30,584
Less Than 9th Grade$31,139$35,913$26,067
Overall$52,136$66,341$41,591
Some College$48,973$67,698$37,568

$52,136

Average Earnings

$66,341

Average Male

$41,591

Average Female

Benton County, Washington Earnings by Educational Attainment

Benton County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Benton County, Washington Language

78.6% of Benton County, Washington residents speak only English, while 21.4% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 16.33% of the population.

Benton County, Washington Language

Benton County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
Hispanic48,29010,49821.74%
White138,7469,2336.65%
Other17,9034,80126.82%
Multiple19,9253,15815.85%
Black3,56764718.14%
Asian6,3025288.38%
Native1,52232921.62%

10.53%

Overall Poverty Rate

9.71%

Male Poverty Rate

11.36%

Female Poverty Rate

Poverty in Benton County, Washington

The race most likely to be in poverty in Benton County, Washington is Other, with 26.82% below the poverty level.

The race least likely to be in poverty in Benton County, Washington is White, with 6.65% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.83%. Among those working part-time, it was 11.97%, and for those that did not work, the poverty rate was 15.55%.

Benton County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade27.19%
High School11.42%
Some College7.7%
Bachelors or Greater2.17%

Benton County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed21.47%
Male Unemployed19.06%
Female Employed5.47%
Male Employed3.84%

Benton County, Washington Poverty Rate by Employment Status and Sex

Benton County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$98,476$121,059
Households$83,778$106,330
Married Families$114,631$-999,999,999
Non Families$50,443$66,024

mean

median

Income by Household Type

Benton County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.6%

Overall Marriage Rate

52.2%

Male Marriage Rate

49.1%

Female Marriage Rate

Benton County, Washington Married by Age and Sex

male

female

Benton County, Washington 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.

Benton County, Washington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Benton County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

12,706

Number of Veterans

11,742

Male Veterans

964

Female Veterans

War
Veterans
Vietnam4,461
First Gulf War2,891
Second Gulf War2,859
Korea666
World War II219

Benton County, Washington Veterans by War

count

Age Group
Veterans
65 to 743,385
35 to 543,158
75+2,812
55 to 642,201
18 to 341,150

Benton County, Washington Veterans by Age

count

Name
Veterans
% of Total
White11,6769.72%
Hispanic6222.1%
2+ Races5424.48%
Other Race2171.85%
Black1134.79%
Asian841.7%
Islander5015.53%
Native American242.09%

Benton County, Washington Veterans by Race

Benton County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

4.5%

Veteran Poverty Rate

28.99%

Veteran Disability Rate

Benton County, Washington Veterans by Education

LaborForceParticipation

62.5%

Labor Force Participation

59.3%

Employment Rate

4.8%

Unemployment Rate

Benton County, Washington Employment by Age

LaborForceParticipation

Benton County, Washington Employment by Race

LaborForceParticipation

Benton County, Washington 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

52.41%

Born in Benton County, Washington

88.44%

Native Born

11.56%

Foreign Born

6.83%

Non Citizen

4.73%

Naturalized

Place of Birth

88.44% of Benton County, Washington residents were born in the United States, with 52.41% having been born in Washington. 6.83% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Benton County, Washington Place of Birth

Sources