Delaware County, IA

County

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2024 Population

17,558

US Senator

Chuck Grassley

Republican Party

US Senator

Joni Ernst

Republican Party

2024 Median Age

43.4

1.36% 1-year decrease

2024 Poverty Rate

7.76%

1.43% 1-year decrease

2024 Median Household Income

$74,989

1.6% 1-year decline

2024 Median Property Value

$177,900

5.45% 1-year growth

2024 Employed Population

9,513

0.021% 1-year decline

About

None of the households in Delaware County, IA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.

99.7% of the residents in Delaware County, IA are U.S. citizens.

In 2024, the median property value in Delaware County, IA was $177,900, and the homeownership rate was 79.6%.

Most people in Delaware County, IA drove alone to work, and the average commute time was 20.3 minutes. The average car ownership in Delaware County, IA was 2 cars per household.

Delaware County, IA borders Buchanan County, IA, Clayton County, IA, Dubuque County, IA, Fayette County, IA, Jones County, IA, and Linn County, IA.

Photo by Robin

United States Iowa

Population & Diversity

Delaware County, IA is home to a population of 17.6k people, from which 99.7% are citizens. As of 2024, 0.325% of Delaware County, IA residents were born outside of the country (57 people).

In 2024, there were 46 times more White (Non-Hispanic) residents (16.5k people) in Delaware County, IA than any other race or ethnicity. There were 359 Two Races Excluding Other, & Three or More Races (Non-Hispanic) and 291 Two Races Including Other (Non-Hispanic) residents, the second and third most common ethnic groups.

Population & Diversity

Citizenship

99.7%

2024 Citizenship

99.9%

2023 Citizenship

As of 2024, 99.7% of Delaware County, IA residents were US citizens, which is higher than the national average of 93.2%. In 2023, the percentage of US citizens in Delaware County, IA was 99.9%, meaning that the rate of citizenship has been decreasing.

The following chart shows US citizenship percentages in Delaware County, IA compared to that of it's neighboring and parent geographies.

Diversity

Race and Ethnicity

The 3 largest ethnic groups in Delaware County, IA

White (Non-Hispanic)
16.5k ± 245
Two Races Excluding Other, & Three or More Races (Non-Hispanic)
359 ± 31
Two Races Including Other (Non-Hispanic)
291 ± 218

1.71%

Hispanic Population

301 people

1.71% of the people in Delaware County, IA are hispanic (301 people).

The following chart shows the 8 races represented in Delaware County, IA as a share of the total population.

Global Diversity

The PUMS dataset is not available at the County level, so we are showing data for Iowa.

Most Common Origin

Mexico
42,808 ± 5,046 people
India
12,283 ± 2,716 people
China
7,889 ± 2,178 people

In 2023, the most common birthplace for the foreign-born residents of Iowa was Mexico, the natal country of 42,808 Iowa residents, followed by India with 12,283 and China with 7,889.

Foreign-Born Population

0.325%

2024 Foreign-Born Population

57 people

0.217%

2023 Foreign-Born Population

38 people

As of 2024, 0.325% of Delaware County, IA residents (57 people) were born outside of the United States, which is approximately the same as the national average of 14%. In 2023, the percentage of foreign-born citizens in Delaware County, IA was 0.217%, meaning that the rate has been increasing.

The following chart shows the percentage of foreign-born residents in Delaware County, IA compared to that of it's neighboring and parent geographies.

Military

Veterans

Most Common Service Period

Vietnam
287 ± 93
Gulf War (1990s)
135 ± 92
Korea
81 ± 50

Delaware County, IA has a large population of military personnel who served in Vietnam, 2.13 times greater than any other conflict.

The chart shows the distribution of veterans by conflict in Delaware County, IA.

Economy

The economy of Delaware County, IA employs 9.51k people. In 2024, the largest industries in Delaware County, IA were Manufacturing (1,832 people), Health Care & Social Assistance (1,436 people), and Retail Trade (997 people), and the highest paying industries were Construction ($72,500), Wholesale Trade ($57,250), and Professional, Scientific, & Technical Services ($55,547).

Employment

Occupations

9.51k

2024 Value

± 650

−0.021%

1 Year decline

± 9.68%

From 2023 to 2024, employment in Delaware County, IA declined at a rate of −0.021%, from 9.52k employees to 9.51k employees.

The most common job groups, by number of people living in Delaware County, IA, are Production Occupations (1,068 people), Management Occupations (1,056 people), and Office & Administrative Support Occupations (989 people). This chart illustrates the share breakdown of the primary jobs held by residents of Delaware County, IA.

Unemployment Insurance Claims

Data is only available at the state level. Showing data for Iowa.

This chart shows weekly unemployment insurance claims in Iowa (not-seasonally adjusted) compared with the four states with the most similar impact.

The most recent data point uses Advance State Claims data, which can be revised in subsequent weeks.

Industries

Employment by Industries

9.51k

2024 Value

± 650

−0.021%

1 Year decline

± 9.68%

From 2023 to 2024, employment in Delaware County, IA declined at a rate of −0.021%, from 9.52k employees to 9.51k employees.

The most common employment sectors for those who live in Delaware County, IA, are Manufacturing (1,832 people), Health Care & Social Assistance (1,436 people), and Retail Trade (997 people). This chart shows the share breakdown of the primary industries for residents of Delaware County, IA, though some of these residents may live in Delaware County, IA and work somewhere else. Census data is tagged to a residential address, not a work address.

Median Earnings by Industry

$51,481

Median earning men ± $2,823

$37,852

Median earning women ± $4,600

The industries with the best median earnings for men in 2024 are Finance & Insurance, & Real Estate & Rental & Leasing ($116,250), Educational Services, & Health Care & Social Assistance ($65,938), and Construction ($65,583).

The industries with the best median earnings for women in 2024 are Construction ($73,795), Information ($53,661), and Wholesale Trade ($52,841).

Employment by Industry Sector

Data is only available at the state level. Showing data for Iowa.

Y-Axis

1.48%

Year-over-year growth

Employment change between February 2022 and February 2023

As of February 2023, there are 1.57M people employed in Iowa. This represents a 1.48% increase in employment when compared to February 2022.

Right after the beginning of the COVID-19 pandemic, during April 2020, a general dip can be seen across industry sectors, resulting in an overall decline in employment by 10.9%.

The following chart shows monthly employment numbers for each industry sector in Iowa.

Establishments by Size

The industries with the most establishments

66
Construction
49
Other Services (except Public Administration)
31
Transportation and Warehousing

The visualization shows the distribution of establishments by industry and by size according to the number of employees.

The visualization shows the number of establishments and its share across establishment sizes.

Payroll by Industry Sector

The industries with the highest total annual payroll

$123k
Manufacturing
$49.5k
Health Care and Social Assistance
$20.7k
Wholesale Trade

The chart shows the total annual payroll and the average annual payroll by industry.

Civics

In the 2024 presidential election, the popular vote in Iowa went to Donald J. Trump with 55.7% of the vote. The runner-up was Kamala Harris (42.5%), followed by Robert Kennedy (0.789%).

Chuck Grassley and Joni Ernst are the senators currently representing the state of Iowa. In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

Iowa is currently represented by 4 members in the U.S. house, and members of the House of Representives are elected to 2-year terms.

Presidential Elections

Presidential Popular Vote Over Time

Voting results are not available for Delaware County, IA. Showing the available data for Iowa.

2024 Election Results

Donald J. Trump (55.7%)
Republican Party
Kamala Harris (42.5%)
Democratic Party
Robert Kennedy (0.789%)
Independent Party

In the 2024 presidential election, the popular vote in Iowa went to Donald J. Trump with 55.7% of the vote. The runner-up was Kamala Harris (42.5%), followed by Robert Kennedy (0.789%).

The following chart shows the popular vote results in Iowa for each registered party from 1976 to 2024.

Senator Elections

US Senators from Iowa

Senatorial voting results are only available at the state level. Showing data for Iowa.

Chuck Grassley

Senator from Iowa

Assumed office on January 3, 1981

Joni Ernst

Senator from Iowa

Assumed office on January 3, 2015

Chuck Grassley and Joni Ernst are the senators currently representing Iowa.

In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

The following chart shows elected senators in Iowa over time, excluding special elections, colored by their political party.

Housing & Living

The median property value in Delaware County, IA was $177,900 in 2024, which is 0.535 times smaller than the national average of $332,700. Between 2023 and 2024 the median property value increased from $168,700 to $177,900, a 5.45% increase. The homeownership rate in Delaware County, IA is 79.6%, which is higher than the national average of 65.2%.

People in Delaware County, IA have an average commute time of 20.3 minutes, and they drove alone to work. Car ownership in Delaware County, IA is approximately the same as the national average, with an average of 2 cars per household.

In 2025, 10.8% of the population was living with severe housing problems in Delaware County, IA. From 2014 to 2025, the indicator grew 2.2%.

Housing

Property

$177,900

Median Property Value 2024

±$16,526

$5,865

Median Property Taxes

±$500

The following chart display owner-occupied housing units distributed between a series of property tax buckets compared to the national averages for each bucket. In Delaware County, IA the largest share of households pay taxes in the $3k+ range.

The chart underneath the paragraph shows the property taxes in Delaware County, IA compared to it's parent and neighbor geographies.

Rent vs Own

79.6%

Homeownership

2024

62.6%

Homeowners with Mortgage

2024

In 2024, 79.6% of the housing units in Delaware County, IA were occupied by their owner. This percentage declined from the previous year's rate of 82.4%.

This chart shows the percentage of owner in Delaware County, IA compared it's parent and neighboring geographies.

Equity

Household Income

Please note that the buckets used in this visualization were not evenly distributed by ACS when publishing the data.

$74,989

Median Household Income

± $6,892

7.37k

Number of Households

± 544

In 2024, the median household income of the 7.37k households in Delaware County, IA declined from $74,989 from the previous year's value of $76,205.

The following chart displays the households in Delaware County, IA distributed between a series of income buckets compared to the national averages for each bucket. The largest share of households have an income in the $75k - $100k range.

Wage Distribution

The closest comparable wage GINI for Delaware County, IA is from Iowa.

0.441

2023 Wage GINI in Iowa

0.442

2022 Wage GINI in Iowa

In 2023, the income inequality in Iowa was 0.441 according to the GINI calculation of the wage distribution. Income inequality had a 0.304% decline from 2022 to 2023, which means that wage distribution grew somewhat more even. The GINI for Iowa was lower than than the national average of 0.476. In other words, wages are distributed more evenly in Iowa in comparison to the national average.

This chart shows the number of workers in Iowa across various wage buckets compared to the national average.

Transportation

Commuter Transportation

Most Common Commute in 2024

Drove Alone (80%)
Worked At Home (9.24%)
Carpooled (7.75%)

In 2024, 80% of workers in Delaware County, IA drove alone to work, followed by those who worked at home (9.24%) and those who carpooled to work (7.75%).

The following chart shows the number of households using each mode of transportation over time, using a logarithmic scale on the y-axis to help better show variations in the smaller means of commuting.

Commute Time

20.3 minutes

Average Travel Time

Using averages, employees in Delaware County, IA have a shorter commute time (20.3 minutes) than the normal US worker (26.4 minutes). Additionally, 2.04% of the workforce in Delaware County, IA have "super commutes" in excess of 90 minutes.

The chart below shows how the median household income in Delaware County, IA compares to that of it's neighboring and parent geographies.

Car Ownership

2 cars

Average Number

The following chart displays the households in Delaware County, IA distributed between a series of car ownership buckets compared to the national averages for each bucket. The largest share of households in Delaware County, IA have 2 cars.

Poverty

Severe Housing Problems

In 2025, 10.8% of the population was living with severe housing problems in Delaware County, IA. From 2014 to 2025, the indicator grew 2.2%.

The graph shows the trend of the percentage of the population living with severe housing problems.

Poverty & Diversity

7.76% of the population for whom poverty status is determined in Delaware County, IA (1.35k out of 17.4k people) live below the poverty line, a number that is lower than the national average of 12.5%. The largest demographic living in poverty are Females 35 - 44, followed by Females 55 - 64 and then Females 75+.

The most common racial or ethnic group living below the poverty line in Delaware County, IA is White, followed by Two Or More and Hispanic.

The Census Bureau uses a set of money income thresholds that vary by family size and composition to determine who classifies as impoverished. If a family's total income is less than the family's threshold than that family and every individual in it is considered to be living in poverty.

Children in Poverty

In 2025, 9.7% of the children was living in poverty in Delaware County, IA. From 2014 to 2025, the indicator declined 2.9%.

The graph shows the trend of the percentage of the children living in poverty.

Social Needs

Data only available at the state level.

Most prevalent states

California
35,798 individuals
New York
5,087 individuals
Florida
4,915 individuals

In 2017, California had the highest estimated number of chronically homeless individuals in the nation, at 35,798. New York has the second highest (5,087), followed by Florida (4,915).

The following map shows the estimated number of chronically homeless individuals by state over multiple years.

Security

Crimes & Accidents

Indicator

In 2022, the number of reported violent crimes offenses per 100,000 population was 147 in Delaware County, IA. From 2014 to 2022, the indicator declined 71.4 per 100,000 population.

The graph shows the trend in the number of reported violent crimes offenses per 100,000 population.

Health

96.7% of the population of Delaware County, IA has health coverage, with 53.9% on employee plans, 13.7% on Medicaid, 16.2% on Medicare, 12.2% on non-group plans, and 0.828% on military or VA plans.

Primary care physicians in Delaware County, IA see 2,189 patients per year on average, which represents a 0% change from the previous year (2,189 patients). Compare this to dentists who see 1952 patients per year, and mental health providers who see 733 patients per year.

By gender, of the total number of insured persons, 51.1% were men and 48.9% were women.

Coverage

Patient to Clinician Ratios

2,189 to 1

Patient to Primary Care Physician Ratio in Delaware County, IA

Primary care physicians in Delaware County, IA see an average of 2,189 patients per year. This represents a 0% change from the previous year (2,189 patients).

The following chart shows how the number of patients seen by primary care physicians has been changing over time in Delaware County, IA in comparison to its neighboring geographies.

Health Care Diversity

In 2024, insured persons according to age ranges were distributed in 24.5% under 18 years, 16.2% between 18 and 34 years, 38.3% between 35 and 64 years, and 20.9% over 64 years.

By gender, of the total number of insured persons, 51.1% were men and 48.9% were women.

The following chart shows the number of people with health coverage by gender.

Uninsured People

3.27%

Uninsured

53.9%

Employer Coverage

13.7%

Medicaid

16.2%

Medicare

12.2%

Non-Group

0.828%

Military or VA

Between 2023 and 2024, the percent of uninsured citizens in Delaware County, IA declined by 18.8% from 4.02% to 3.27%.

The following chart shows how the percent of uninsured individuals in Delaware County, IA changed over time compared with the percent of individuals enrolled in various types of health insurance.

Health Indicators

Health Outcomes

Indicator

In 2025, the number of deaths among residents under age 18 per 100,000 population was 62.5 in Delaware County, IA.

The graphic shows the trend of the indicator in Delaware County, IA.

Health Behaviors

Indicator

In 2025, the percentage of the adult population (age 18 and older) that reports a body mass index (BMI) greater than or equal to 30 kg/m2 (age-adjusted) was 40.6% in Delaware County, IA.

The graphic shows the trend of the indicator in Delaware County, IA.