Delaware County, Iowa Population 2024

17,593

Delaware County, Iowa's estimated 2024 population is 17,593 with a growth rate of -0.04% 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 17,763 and has seen a growth of -0.96% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202917,558-7-0.04%
202817,565-7-0.04%
202717,572-7-0.04%
202617,579-7-0.04%
202517,586-7-0.04%
202417,593-7-0.04%
202317,600-7-0.04%
202217,607540.31%
202117,553950.54%
202017,4584012.35%
201917,057-58-0.34%
201817,115-24-0.14%
201717,139-150-0.87%
201617,289-106-0.61%
201517,395-2-0.01%
201417,397-78-0.45%
201317,475-93-0.53%
201217,568-63-0.36%
201117,631-132-0.74%
201017,76300%
199018,035-898-4.74%
198018,9331630.87%
197018,7702871.55%
196018,4837494.22%
195017,734-753-4.07%
194018,4873652.01%
193018,122-61-0.34%
192018,1832951.65%
191017,888-1,297-6.76%
190019,1851,83610.58%
189017,349-601-3.35%
188017,9505182.97%
187017,4326,40858.13%
186011,0249,265526.72%
18501,7591,591947.02%
1840168-17,390-99.04%
showing: 36 rows
2024 Growth Rate
-0.04% (-7)
County Website
Delaware County
State
Iowa
County Seat
2020 Population
17,458
Area
578 mi²
Density
30 people/mi²
Growth Since 2020
0.77% (135)
Founded
1837

Delaware County, Iowa Population 2024

Population by Race

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Race
Population
Percentage (of total)
White16,79995.87%
Two or more races5102.91%
Other race1620.92%
Asian360.21%
Native American150.09%
Black or African American10.01%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Delaware County, Iowa Population by Race

Delaware County, Iowa Population Pyramid 2024

Delaware County, Iowa Median Age

43.5

Total

42.8

Male

45.2

Female

Delaware County, Iowa Adults

There are 13,351 adults, (3,562 of whom are seniors) in Delaware County, Iowa.

Delaware County, Iowa Age Dependency

79

Age Dependency Ratio

36.4

Old Age Dependency Ratio

42.6

Child Dependency Ratio

Delaware County, Iowa Sex Ratio

Female8,57948.96%
Male8,94451.04%

Delaware County, Iowa Population by Age

Delaware County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,0682.4582.617.4
Married4,1793.0792.27.8
Non Family2,2851.1567.832.2
Female3732.8257.642.4
Male2313.394.85.2

3.03

Average Family Size

2.45

Average Household Size

82.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Delaware County, Iowa Households and Families

Male

Female

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Education Attained
Count
Percentage
Less Than 9th Grade2782.31%
9th to 12th Grade6715.57%
High School Graduate5,12442.55%
Some College2,07617.24%
Associates Degree1,66213.8%
Bachelors Degree1,63813.6%
Graduate Degree5934.92%

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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Race
Total
High School
Bachelors
White11,68810,8282,184
2+ Races18617113
Hispanic122480
Other Race54400
Asian363634
Native American15150

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 94.44%.

Delaware County, Iowa Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Overall$46,955$55,000$37,091
Less Than 9th Grade$47,593$48,414$40,109
High School Graduate$45,644$50,844$31,775
Some College$43,117$59,479$35,972
Bachelors Degree$58,681$74,750$53,523
Graduate Degree$67,532$81,364$60,694

$46,955

Average Earnings

$55,000

Average Male

$37,091

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

97.32% of Delaware County, Iowa residents speak only English, while 2.68% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.25% of the population.

Delaware County, Iowa Language

Delaware County, Iowa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White16,5461,0346.25%
Hispanic2827526.6%
Multiple5075210.26%

6.64%

Overall Poverty Rate

5.07%

Male Poverty Rate

8.3%

Female Poverty Rate

Poverty in Delaware County, Iowa

The race most likely to be in poverty in Delaware County, Iowa is Hispanic, with 26.6% below the poverty level.

The race least likely to be in poverty in Delaware County, Iowa is White, with 6.25% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.97%. Among those working part-time, it was 6.9%, and for those that did not work, the poverty rate was 17.5%.

Delaware County, Iowa Poverty

rate

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Rate
Poverty
Less Than 9th Grade14.74%
High School9.85%
Some College3.8%
Bachelors or Greater3.59%

Delaware County, Iowa Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed21.88%
Female Employed5.05%
Male Unemployed4.37%
Male Employed3.04%

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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Name
Median
Mean
Households$75,896$97,812
Families$90,572$118,169
Married Families$97,997$-999,999,999
Non Families$43,589$53,522

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

60.3%

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 Over 65, 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

889

Number of Veterans

846

Male Veterans

43

Female Veterans

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War
Veterans
Vietnam301
First Gulf War123
Second Gulf War120
Korea84
World War II10

Delaware County, Iowa Veterans by War

count

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Age Group
Veterans
75+261
55 to 64252
65 to 74200
35 to 54120
18 to 3456

Delaware County, Iowa Veterans by Age

count

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Name
Veterans
% of Total
White8836.79%
2+ Races63.11%
Hispanic52.91%

Delaware County, Iowa Veterans by Race

Delaware County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.93%

Veteran Poverty Rate

26.23%

Veteran Disability Rate

Delaware County, Iowa Veterans by Education

LaborForceParticipation

71.1%

Labor Force Participation

69.5%

Employment Rate

2.2%

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

90.4%

Born in Delaware County, Iowa

99.66%

Native Born

0.34%

Foreign Born

0.11%

Non Citizen

0.22%

Naturalized

Place of Birth

99.66% of Delaware County, Iowa residents were born in the United States, with 90.4% having been born in Iowa. 0.11% 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