Delaware County, Iowa Population 2020

Delaware County, Iowa's estimated population is 17,158 with a growth rate of -0.71% in the past year according to the most recent United States census data. Delaware County, Iowa is the 43rd largest county in Iowa.

Year Population Growth Growth Rate
201817,069-89-0.52%
201717,158-122-0.71%
201617,280-109-0.63%
201517,389-3-0.02%
201417,392-79-0.45%
201317,471-94-0.54%
201217,565-64-0.36%
201117,629-134-0.75%
201017,763-272-1.51%
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%

How Many People Live in Delaware County, Iowa?

17,158

Delaware County, Iowa Population Growth

Population by Race

Race Population Percentage
White16,86597.72%
Two or More Races1781.03%
Asian660.38%
American Indian and Alaska Native550.32%
Black or African American480.28%
Some Other Race460.27%

Delaware County, Iowa Population Pyramid 2020

Delaware County, Iowa Median Age

43.6


Total

43


Male

44.4


Female

Delaware County, Iowa Adults

There are 13,142 adults, (3,247 of whom are seniors) in Delaware County, Iowa.

Delaware County, Iowa Age Dependency

74.4

Age Dependency Ratio

32.8

Old Age Dependency Ratio

41.6

Child Dependency Ratio

Delaware County, Iowa Sex Ratio

Female

8,569

49.65%

Male

8,689

50.35%

Delaware County, Iowa Households and Families

Delaware County, Iowa Renter vs Owner Occupied by Household Type

Delaware County, Iowa Household Types

Type Owner Renter
Married92.4%7.6%
Male86.3%13.7%
All82.9%17.1%
Non Family67%33%
Female65.3%34.7%

82.9%

Rate of Home Ownership

Type Count Average Size Owned
All6,9392.4582.9
Married4,1353.0292.4
Non Family2,1151.1667
Female3833.0165.3
Male3063.0386.3

2.96

Average Family Size

2.45

Average Household Size

5.3%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

Delaware County, Iowa Education

Education Attained Count Percentage
Less Than 9th Grade4073.44%
9th to 12th Grade6235.26%
High School Graduate5,10243.10%
Some College2,22918.83%
Associates Degree1,51312.78%
Bachelors Degree1,40311.85%
Graduate Degree5614.74%

Delaware County, Iowa Educational Attainment by Race

Name Total High School Bachelors
White11,54410,5681,935
Hispanic134953
Native American555521
Multiple Races53455
Other Race3531
Black2824
Asian2421

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 native american people with a rate of 38.18%.

Name Average Male Female
Overall$37,723$48,030$28,425
Less Than High School$23,942$41,073$16,151
High School Grad$36,074$47,894$24,670
Some College$36,943$51,130$29,084
Bachelors Degree$45,811$51,809$42,066
Graduate Degree$54,596$67,981$51,042

$37,723

Average Earnings

$48,030

Average Male

$28,425

Average Female

Delaware County, Iowa Language

Delaware County, Iowa Language by Age

Delaware County, Iowa Language

98.08% of Delaware County, Iowa residents speak only English, while 1.92% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.01% of the population.

Delaware County, Iowa Poverty

Delaware County, Iowa Poverty by Race

Name Total In Poverty Poverty Rate
White16,4641,2657.68%
Hispanic2347933.76%
Native553461.82%
Black483470.83%
Asian661827.27%
Multiple1551710.97%
Other46715.22%

8.52%

Overall Poverty Rate

8.87%

Male Poverty Rate

8.15%

Female Poverty Rate

Poverty in Delaware County, Iowa

The race most likely to be in poverty in Delaware County, Iowa is Black, with 70.83% below the poverty level.

The race least likely to be in poverty in Delaware County, Iowa is White, with 7.68% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.14%. Among those working part-time, it was 14.74%, and for those that did not work, the poverty rate was 15.16%.

Name Poverty
Less Than High School20.14%
High School9.80%
Some College3.40%
Bachelors or Greater2.87%
Name Poverty
Female Unemployed27.27%
Male Unemployed14.13%
Male Employed4.46%
Female Employed4.02%

Delaware County, Iowa Income

Delaware County, Iowa Income by Household Type

Name Median Mean
Households$61,179$76,802
Families$75,410$90,473
Married Families$80,905-
Non Families$35,464$43,378

Delaware County, Iowa Marital Status

Delaware County, Iowa Marital Status

Marriage Rates

61.1%

Overall Marriage Rate

60.3%

Male Marriage Rate

61.9%

Female Marriage Rate

Delaware County, Iowa Married by Age and Sex

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 45-54.

Delaware County, Iowa Marital Status by Race

Delaware County, Iowa Veterans

1,016

Number of Veterans

919

Male Veterans

97

Female Veterans

War Veterans
Vietnam442
Korea202
First Gulf War159
Second Gulf War90
World War II25

$Delaware County, Iowa Veterans by Education

6.27%

Veteran Poverty Rate

37.51%

Veteran Disability Rate

Delaware County, Iowa Employment Status

70.1%

Labor Force Participation

68.4%

Employment Rate

2.3%

Unemployment Rate

Delaware County, Iowa Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

88.53%

Born in Iowa

99.47%

Native Born

0.53%

Foreign Born

0.30%

Non Citizen

Place of Birth

99.47% of Delaware County, Iowa residents were born in the United States, with 88.53% having been born in Iowa. 0.30% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

  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