Delaware County, Iowa Population 2023

17,404

Delaware County, Iowa's estimated 2023 population is 17,404 with a growth rate of -0.16% in the past year according to the most recent United States census data. Delaware County, Iowa is the 40th largest county in Iowa. The 2010 population was 17,764 and has seen a growth of -2.03% since that time.

Note: data after 2021 is projected based on recent change

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2023 Growth Rate
-0.16% (-28)
County Website
Delaware County
State
Iowa
Founded
1837
County Seat
Manchester
2010 Population
17,764
Growth Since 2010
-2.03% (-360)

Delaware County, Iowa Population 2023

Population by Race

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White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Delaware County, Iowa Population by Race

Delaware County, Iowa Population Pyramid 2023

Delaware County, Iowa Median Age

43.7

Total

43.2

Male

44.8

Female

Delaware County, Iowa Adults

There are 13,298 adults, (3,419 of whom are seniors) in Delaware County, Iowa.

Delaware County, Iowa Age Dependency

77.2

Age Dependency Ratio

34.6

Old Age Dependency Ratio

42.6

Child Dependency Ratio

Delaware County, Iowa Sex Ratio

Female8,59449.09%
Male8,91450.91%

Delaware County, Iowa Population by Age

Delaware County, Iowa Renter vs Owner Occupied by Household Type

3.06

Average Family Size

2.49

Average Household Size

82.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Delaware County, Iowa Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Delaware County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among asian people with a rate of 71.15%.

Delaware County, Iowa Educational Attainment by Race

All

Male

Female

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$43,509

Average Earnings

$52,587

Average Male

$33,773

Average Female

Delaware County, Iowa Earnings by Educational Attainment

Delaware County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Delaware County, Iowa Language

97.76% of Delaware County, Iowa residents speak only English, while 2.24% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.12% of the population.

Delaware County, Iowa Language

Delaware County, Iowa Poverty by Race

rate

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8.56%

Overall Poverty Rate

7.34%

Male Poverty Rate

9.84%

Female Poverty Rate

Poverty in Delaware County, Iowa

The race most likely to be in poverty in Delaware County, Iowa is Black, with 525% below the poverty level.

The race least likely to be in poverty in Delaware County, Iowa is White, with 9.87% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.11%. Among those working part-time, it was 10.08%, and for those that did not work, the poverty rate was 17.22%.

Delaware County, Iowa Poverty

rate

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Delaware County, Iowa Poverty Rate by Education

rate

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Delaware County, Iowa Poverty Rate by Employment Status and Sex

Delaware County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Delaware County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

61.3%

Overall Marriage Rate

62.2%

Male Marriage Rate

60.4%

Female Marriage Rate

Delaware County, Iowa Married by Age and Sex

male

female

Delaware County, Iowa Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Delaware County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Delaware County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,012

Number of Veterans

918

Male Veterans

94

Female Veterans

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Delaware County, Iowa Veterans by War

count

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Delaware County, Iowa Veterans by Age

count

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Delaware County, Iowa Veterans by Race

Delaware County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.01%

Veteran Poverty Rate

24.45%

Veteran Disability Rate

Delaware County, Iowa Veterans by Education

LaborForceParticipation

70.9%

Labor Force Participation

69.5%

Employment Rate

2%

Unemployment Rate

Delaware County, Iowa Employment by Age

LaborForceParticipation

Delaware County, Iowa Employment by Race

LaborForceParticipation

Delaware County, Iowa 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

90.11%

Born in Delaware County, Iowa

99.82%

Native Born

0.45%

Foreign Born

0.13%

Non Citizen

0.32%

Naturalized

Place of Birth

99.82% of Delaware County, Iowa residents were born in the United States, with 90.11% having been born in Iowa. 0.13% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Delaware County, Iowa Place of Birth

Sources