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
Year
Population
Growth
Change
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%
2024 Growth Rate
-0.04% (-7)
County Website
Delaware County
State
Iowa
County Seat
Manchester
2020 Population
17,458
Area
578 mi²
Density
30 people/mi²
Growth Since 2020
0.77% (135)
Founded
1837

Population by Race

Race
Population
Percentage (of total)
White16,77095.56%
Two or more races6113.48%
Other race1330.76%
Native American190.11%
Asian140.08%
Black or African American20.01%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Native American

Asian

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

44

Total

43.5

Male

44.9

Female

Delaware County, Iowa Adults

There are 13,434 adults, (3,674 of whom are seniors) in Delaware County, Iowa.

Delaware County, Iowa Age Dependency

79.8

Age Dependency Ratio

37.6

Old Age Dependency Ratio

42.2

Child Dependency Ratio

Delaware County, Iowa Sex Ratio

Female8,62649.15%
Male8,92350.85%

Delaware County, Iowa Population by Age

Delaware County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,1762.4182.417.6
Married4,024394.45.6
Non Family2,3911.1966.133.9
Female4022.5243.856.2
Male3593.8799.40.6

2.99

Average Family Size

2.41

Average Household Size

82.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Delaware County, Iowa Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade5904.84%
Associates Degree1,64613.52%
Bachelors Degree1,67713.77%
Graduate Degree7275.97%
High School Graduate5,30743.58%
Less Than 9th Grade3632.98%
Some College1,86915.35%

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

Race
Total
High School
Bachelors
White11,73310,8902,293
2+ Races30529298
Hispanic128310
Other Race2980
Native American19190
Asian141413

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 92.86%.

Delaware County, Iowa Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$65,642$91,346$54,099
Graduate Degree$69,342$86,938$49,792
High School Graduate$42,151$49,499$28,523
Less Than 9th Grade$35,313$0$29,167
Overall$47,695$53,336$38,737
Some College$45,945$58,707$38,895

$47,695

Average Earnings

$53,336

Average Male

$38,737

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

97.36% of Delaware County, Iowa residents speak only English, while 2.64% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.31% of the population.

Delaware County, Iowa Language

Delaware County, Iowa Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White16,5161,1416.91%
Multiple60614924.59%
Hispanic28410135.56%
Other13321.5%

7.87%

Overall Poverty Rate

5.43%

Male Poverty Rate

10.41%

Female Poverty Rate

Poverty in Delaware County, Iowa

The race most likely to be in poverty in Delaware County, Iowa is Hispanic, with 35.56% below the poverty level.

The race least likely to be in poverty in Delaware County, Iowa is Other, with 1.5% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.7%. Among those working part-time, it was 9.12%, and for those that did not work, the poverty rate was 22.06%.

Delaware County, Iowa Poverty

rate

Rate
Poverty
Less Than 9th Grade26.06%
High School9.55%
Bachelors or Greater5.88%
Some College5.72%

Delaware County, Iowa Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed31.03%
Female Employed5.63%
Male Unemployed3.41%
Male Employed2.3%

Delaware County, Iowa Poverty Rate by Employment Status and Sex

Delaware County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$89,671$115,694
Households$76,205$95,969
Married Families$99,241$-999,999,999
Non Families$42,479$54,990

mean

median

Income by Household Type

Delaware County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

58.8%

Overall Marriage Rate

59.7%

Male Marriage Rate

57.9%

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 45-54.

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

793

Number of Veterans

760

Male Veterans

33

Female Veterans

War
Veterans
Vietnam262
First Gulf War125
Second Gulf War90
Korea77
World War II19

Delaware County, Iowa Veterans by War

count

Age Group
Veterans
75+244
55 to 64225
65 to 74175
35 to 54104
18 to 3445

Delaware County, Iowa Veterans by Age

count

Name
Veterans
% of Total
White7805.99%
2+ Races113.44%
Hispanic52.87%
Native American210.53%

Delaware County, Iowa Veterans by Race

Delaware County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.07%

Veteran Poverty Rate

27.6%

Veteran Disability Rate

Delaware County, Iowa Veterans by Education

LaborForceParticipation

69.8%

Labor Force Participation

68.3%

Employment Rate

2.1%

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

89.32%

Born in Delaware County, Iowa

99.78%

Native Born

0.22%

Foreign Born

0.12%

Non Citizen

0.1%

Naturalized

Place of Birth

99.78% of Delaware County, Iowa residents were born in the United States, with 89.32% having been born in Iowa. 0.12% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Delaware County, Iowa Place of Birth

Sources