Benton County, Iowa Population 2021

Benton County, Iowa's estimated population is 25,685 with a growth rate of 0.08% in the past year according to the most recent United States census data. Benton County, Iowa is the 25th largest county inIowa. The 2010 Population was 26,046 and has seen a growth of -1.39% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202125,685200.08%
202025,665200.08%
201925,645200.08%
201825,625-31-0.12%
201725,656120.05%
201625,644360.14%
201525,608-15-0.06%
201425,623-76-0.30%
201325,699-131-0.51%
201225,830-248-0.95%
201126,078320.12%
201026,0463,61716.13%
199022,429-1,220-5.16%
198023,6497643.34%
197022,885-537-2.29%
196023,4227663.38%
195022,656-223-0.97%
194022,879280.12%
193022,851-1,229-5.10%
192024,0809243.99%
191023,156-2,021-8.03%
190025,1779994.13%
189024,178-710-2.85%
188024,8882,43410.84%
187022,45413,958164.29%
18608,4967,8241164.29%
18506720.00%
2021 Growth Rate
0.08% (20)
County Website
State
Founded
1837
County Seat
2010 Population
26,046
Growth Since 2010
-1.39% (-361)
map placeholder

Benton County, Iowa Population Growth

Population by Race

Race Population Percentage
White24,85296.94%
Two or More Races3361.31%
Some Other Race1790.70%
Black or African American1430.56%
Asian850.33%
American Indian and Alaska Native410.16%
Loading...

Benton County, Iowa Population by Race

Benton County, Iowa Population Pyramid $2021

Loading...

Benton County, Iowa Median Age

42.6


Total

41.6


Male

43.5


Female

Benton County, Iowa Adults

There are 19,584 adults, (4,631 of whom are seniors) in Benton County, Iowa.

Benton County, Iowa Age Dependency

71.4

Age Dependency Ratio

31

Old Age Dependency Ratio

40.5

Child Dependency Ratio

Benton County, Iowa Sex Ratio

Female

12,848

50.12%

Male

12,788

49.88%

Benton County, Iowa Population by Age

Benton County, Iowa Renter vs Owner Occupied by Household Type

map placeholder

Benton County, Iowa Household Types

Type Owner Renter
Non Family65.3%34.7%
Male66.7%33.3%
Female71.6%28.4%
All82.8%17.2%
Married93.6%6.4%

82.8%

Rate of Home Ownership

Benton County, Iowa Households and Families

Type Count Average Size Owned
All10,3062.4582.8
Married6,1922.9293.6
Non Family2,9851.1865.3
Female7933.371.6
Male3363.2666.7

2.89

Average Family Size

2.45

Average Household Size

Loading...

Benton County, Iowa Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade3091.74%
9th to 12th Grade7414.17%
High School Graduate6,55536.93%
Some College3,71120.91%
Associates Degree2,51014.14%
Bachelors Degree2,79415.74%
Graduate Degree1,1316.37%
Loading...

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

Benton County, Iowa Educational Attainment by Race

Loading...
Race Total High School Bachelors
White17,25916,2663,750
Hispanic20816256
2+ Races878413
Black807717
Other Race695418
Asian616052
Native American332925

The highest rate of high school graduation is among asian people with a rate of 98.36%.

The highest rate of bachelors degrees is among asian people with a rate of 85.25%.

Benton County, Iowa Educational Attainment by Race

Loading...
Name Average Male Female
Overall$42,457$51,491$32,474
Less Than 9th Grade$21,992$27,297$12,031
High School Graduate$38,408$46,127$25,969
Some College$38,031$52,703$30,784
Bachelors Degree$52,135$69,271$45,893
Graduate Degree$70,028$80,625$62,986

$42,457

Average Earnings

$51,491

Average Male

$32,474

Average Female

Benton County, Iowa Earnings by Educational Attainment

Benton County, Iowa Language by Age

Loading...

Benton County, Iowa Language

97.17% of Benton County, Iowa residents speak only English, while 2.83% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.53% of the population.

Benton County, Iowa Language

Benton County, Iowa Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White24,1652,0808.61%
Multiple3175717.98%
Hispanic3855414.03%
Black1363122.79%
Native4149.76%

8.81%

Overall Poverty Rate

7.01%

Male Poverty Rate

10.60%

Female Poverty Rate

Poverty in Benton County, Iowa

The race most likely to be in poverty in Benton County, Iowa is Black, with 22.79% below the poverty level.

The race least likely to be in poverty in Benton County, Iowa is White, with 8.61% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.33%. Among those working part-time, it was 11.19%, and for those that did not work, the poverty rate was 19.30%.

Benton County, Iowa Poverty

Loading...
Name Poverty
Less Than 9th Grade16.88%
High School12.27%
Some College7.24%
Bachelors or Greater1.99%

Benton County, Iowa Poverty Rate by Education

Loading...
Rate Poverty
Female Unemployed19.11%
Male Unemployed6.52%
Female Employed5.99%
Male Employed4.04%

Benton County, Iowa Poverty Rate by Employment Status and Sex

Benton County, Iowa Income by Household Type

Loading...
Name Median Mean
Households$67,729$81,983
Families$81,005$96,654
Married Families$89,324-
Non Families$33,125$42,430
Loading...

Income by Household Type

Benton County, Iowa Marital Status

map placeholder

Marriage Rates

60.8%

Overall Marriage Rate

61.1%

Male Marriage Rate

60.6%

Female Marriage Rate

Benton County, Iowa Married by Age and Sex

Loading...

Benton County, Iowa Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Benton County, Iowa Marital Status by Race

map placeholder

Benton County, Iowa Marital Status

Loading...

1,689

Number of Veterans

1,535

Male Veterans

154

Female Veterans

War Veterans
Vietnam621
First Gulf War251
Second Gulf War193
Korea191
World War II48

Benton County, Iowa Veterans by War

Loading...
Age Group Veterans
65 to 74507
75+410
55 to 64358
35 to 54332
18 to 3482

Benton County, Iowa Veterans by Age

Loading...
Name Veterans % of Total
White1,6818.75%
Hispanic4518.91%
Black89.64%

Benton County, Iowa Veterans by Race

Benton County, Iowa Veterans by Education

Loading...

7.41%

Veteran Poverty Rate

18.43%

Veteran Disability Rate

Benton County, Iowa Veterans by Education

Loading...

67.3%

Labor Force Participation

65.3%

Employment Rate

3%

Unemployment Rate

Benton County, Iowa Employment by Age

Loading...

Benton County, Iowa Employment by Race

Loading...

Benton County, Iowa Employment by Education

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

84.56%

Born in Benton County, Iowa

99.22%

Native Born

0.78%

Foreign Born

0.39%

Non Citizen

0.39%

Naturalized

Place of Birth

99.22% of Benton County, Iowa residents were born in the United States, with 84.56% having been born in Iowa. 0.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Benton County, Iowa Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources