Delaware County, Iowa Population 2021

Delaware County, Iowa's estimated population is 16,871 with a growth rate of -0.41% in the past year according to the most recent United States census data. Delaware County, Iowa is the 43rd largest county inIowa. The 2010 Population was 17,764 and has seen a growth of -5.03% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
202116,871-70-0.41%
202016,941-70-0.41%
201917,011-70-0.41%
201817,081-62-0.36%
201717,143-145-0.84%
201617,288-105-0.60%
201517,393-2-0.01%
201417,395-78-0.45%
201317,473-94-0.54%
201217,567-65-0.37%
201117,632-132-0.74%
201017,764-271-1.50%
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%
18401680.00%
2021 Growth Rate
-0.41% (-70)
County Website
State
Founded
1837
County Seat
2010 Population
17,764
Growth Since 2010
-5.03% (-893)
map placeholder

Delaware County, Iowa Population Growth

Population by Race

Race Population Percentage
White16,76097.54%
Two or More Races1931.12%
Some Other Race760.44%
Asian630.37%
American Indian and Alaska Native550.32%
Black or African American360.21%
Loading...

Delaware County, Iowa Population by Race

Delaware County, Iowa Population Pyramid $2021

Loading...

Delaware County, Iowa Median Age

43.8


Total

43.3


Male

44.6


Female

Delaware County, Iowa Adults

There are 13,063 adults, (3,276 of whom are seniors) in Delaware County, Iowa.

Delaware County, Iowa Age Dependency

75.6

Age Dependency Ratio

33.5

Old Age Dependency Ratio

42.1

Child Dependency Ratio

Delaware County, Iowa Sex Ratio

Female

8,557

49.80%

Male

8,626

50.20%

Delaware County, Iowa Population by Age

Delaware County, Iowa Renter vs Owner Occupied by Household Type

map placeholder

Delaware County, Iowa Household Types

Type Owner Renter
Female63.5%36.5%
Non Family72.2%27.8%
Male81.8%18.2%
All84.4%15.6%
Married92.2%7.8%

84.4%

Rate of Home Ownership

Delaware County, Iowa Households and Families

Type Count Average Size Owned
All6,9072.4584.4
Married4,1863.0292.2
Non Family2,0241.1572.2
Female3562.9563.5
Male3412.6781.8

2.95

Average Family Size

2.45

Average Household Size

Loading...

Delaware County, Iowa Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade3172.69%
9th to 12th Grade6625.61%
High School Graduate5,04542.78%
Some College2,25319.11%
Associates Degree1,55413.18%
Bachelors Degree1,39411.82%
Graduate Degree5674.81%
Loading...

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

Delaware County, Iowa Educational Attainment by Race

Loading...
Race Total High School Bachelors
White11,50810,6231,919
Hispanic147573
Native American555519
Other Race3521
Asian353316
2+ Races25254
Black2220

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 45.71%.

Delaware County, Iowa Educational Attainment by Race

Loading...
Name Average Male Female
Overall$39,262$48,593$29,190
Less Than 9th Grade$36,250$41,823$15,816
High School Graduate$36,097$46,703$25,995
Some College$38,550$53,605$28,206
Bachelors Degree$45,662$51,193$44,194
Graduate Degree$57,619$78,906$53,024

$39,262

Average Earnings

$48,593

Average Male

$29,190

Average Female

Delaware County, Iowa Earnings by Educational Attainment

Delaware County, Iowa Language by Age

Loading...

Delaware County, Iowa Language

97.78% of Delaware County, Iowa residents speak only English, while 2.22% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.21% of the population.

Delaware County, Iowa Language

Delaware County, Iowa Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White16,4131,3468.20%
Hispanic25210441.27%
Multiple1743821.84%
Native553665.45%
Black362363.89%
Asian631117.46%
Other7633.95%

9.18%

Overall Poverty Rate

8.47%

Male Poverty Rate

9.90%

Female Poverty Rate

Poverty in Delaware County, Iowa

The race most likely to be in poverty in Delaware County, Iowa is Native, with 65.45% below the poverty level.

The race least likely to be in poverty in Delaware County, Iowa is Other, with 3.95% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.79%. Among those working part-time, it was 14.49%, and for those that did not work, the poverty rate was 16.73%.

Delaware County, Iowa Poverty

Loading...
Name Poverty
Less Than 9th Grade20.25%
High School10.49%
Some College3.64%
Bachelors or Greater3.02%

Delaware County, Iowa Poverty Rate by Education

Loading...
Rate Poverty
Male Unemployed16.67%
Female Unemployed15.29%
Female Employed5.00%
Male Employed4.56%

Delaware County, Iowa Poverty Rate by Employment Status and Sex

Delaware County, Iowa Income by Household Type

Loading...
Name Median Mean
Households$63,750$79,350
Families$76,002$93,599
Married Families$81,279-
Non Families$33,803$43,416
Loading...

Income by Household Type

Delaware County, Iowa Marital Status

map placeholder

Marriage Rates

61.7%

Overall Marriage Rate

61.8%

Male Marriage Rate

61.7%

Female Marriage Rate

Delaware County, Iowa Married by Age and Sex

Loading...

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

map placeholder

Delaware County, Iowa Marital Status

Loading...

989

Number of Veterans

891

Male Veterans

98

Female Veterans

War Veterans
Vietnam409
Korea183
First Gulf War153
Second Gulf War146
World War II20

Delaware County, Iowa Veterans by War

Loading...
Age Group Veterans
75+366
65 to 74271
35 to 54158
55 to 64132
18 to 3462

Delaware County, Iowa Veterans by Age

Loading...
Name Veterans % of Total
White9867.66%
Hispanic138.61%
2+ Races312.00%

Delaware County, Iowa Veterans by Race

Delaware County, Iowa Veterans by Education

Loading...

5.84%

Veteran Poverty Rate

32.53%

Veteran Disability Rate

Delaware County, Iowa Veterans by Education

Loading...

69.7%

Labor Force Participation

68.3%

Employment Rate

2%

Unemployment Rate

Delaware County, Iowa Employment by Age

Loading...

Delaware County, Iowa Employment by Race

Loading...

Delaware 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...

88.61%

Born in Delaware County, Iowa

99.29%

Native Born

0.71%

Foreign Born

0.42%

Non Citizen

0.29%

Naturalized

Place of Birth

99.29% of Delaware County, Iowa residents were born in the United States, with 88.61% having been born in Iowa. 0.42% 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

  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