Polk County, IA

County

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Population

487,204

1.12% 1-year growth

US Senator

Chuck Grassley

Republican Party

US Senator

Joni Ernst

Republican Party

Median Age

35.8

Poverty Rate

11.1%

Median Household Income

$68,291

3.48% 1-year growth

Median Property Value

$189,200

4.7% 1-year growth

Number of Employees

262,065

0.307% 1-year growth

About

In 2018, Polk County, IA had a population of 487k people with a median age of 35.8 and a median household income of $68,291. Between 2017 and 2018 the population of Polk County, IA grew from 481,830 to 487,204, a 1.12% increase and its median household income grew from $65,995 to $68,291, a 3.48% increase.

The 5 largest ethnic groups in Polk County, IA are White (Non-Hispanic) (77.1%), White (Hispanic) (6.83%), Black or African American (Non-Hispanic) (6.47%), Asian (Non-Hispanic) (4.87%), and Two+ (Non-Hispanic) (2.79%). NaNk% of the people in Polk County, IA speak a non-English language, and 94% are U.S. citizens.

The largest universities in Polk County, IA are Des Moines Area Community College (4,398 degrees awarded in 2017), Drake University (1,554 degrees), and Grand View University (646 degrees).

The median property value in Polk County, IA is $189,200, and the homeownership rate is 67.8%. Most people in Polk County, IA commute by Drove Alone, and the average commute time is 18.9 minutes. The average car ownership in Polk County, IA is 2 cars per household.

Polk County, IA borders Boone County, IA, Dallas County, IA, Jasper County, IA, Madison County, IA, Marion County, IA, Story County, IA, and Warren County, IA.

About the photo: The pedestrian bridge just south of Court Ave in downtown Des Moines.

Photo by Jason Mrachina

United States Iowa Des Moines-West Des Moines, IA

COVID-19

Daily New Cases by Date

Showing data at the state level for Iowa. Hospitalization data for some states may be delayed or not reported.

This chart shows the number of COVID-19 daily new cases by date in Iowa, as a 7-day rolling average, compared with the four states with the most similar number of confirmed cases.

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Impact on Employment

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.

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Community Mobility

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

This chart presents movement trends over time in the state of Iowa across different categories of places such as retail and recreation, groceries and pharmacies, parks, transit stations, workplaces, and residential.

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Civics

In the 2016 presidential election, the popular vote in Iowa went to Hillary Rodham Clinton with 51.7% of the vote. The runner-up was Donald J. Trump (40.4%), followed by Other (7.89%). The most partisan county was Lyon County, IA with 81.4% of the vote going to Donald J. Trump running for the Republican Party.

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.

Polk County, IA 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 Popular Vote Over Time

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

2016 Election Results

Hillary Rodham Clinton (51.7%)
Democratic Party
Donald J. Trump (40.4%)
Republican Party
Other (7.89%)
Other Party

In the 2016 presidential election, the popular vote in Iowa went to Hillary Rodham Clinton with 51.7% of the vote. The runner-up was Donald J. Trump (40.4%), followed by Other (7.89%).

The following chart shows the popular vote results in Iowa for each registered party from 1976 to 2016.

Presidential Popular Vote by County

Presidential voting results are only available at the county level. Showing data for the counties inside of Iowa.

Hillary Rodham Clinton

Popular Vote for Iowa

51.7% for the Democratic Party

Most Partisan Counties in Iowa

Lyon County, IA
81.4% for Donald J. Trump (Republican Party)
Sioux County, IA
81.3% for Donald J. Trump (Republican Party)
Osceola County, IA
78.8% for Donald J. Trump (Republican Party)

In the 2016 presidential election, the most partisan county in Iowa was Lyon County, IA with 81.4% of the vote going to Donald J. Trump running for the Republican Party.

The following map shows the counties in Iowa colored by their party leaning.

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, colored by their political party.

US Representatives from Iowa

Iowa is currently represented by 4 members in the U.S. house.

Members of the House of Representives are elected to 2-year terms, and the following chart shows the how the members for Polk County, IA have changed over time starting in 2008.

Diversity

Polk County, IA is home to a population of 487k people, from which 94% are citizens. As of 2018, 8.74% of Polk County, IA residents were born outside of the country (42.6k people).

In 2018, there were 11.3 times more White (Non-Hispanic) residents (376k people) in Polk County, IA than any other race or ethnicity. There were 33.3k White (Hispanic) and 31.5k Black or African American (Non-Hispanic) residents, the second and third most common ethnic groups.

Race and Ethnicity

The 3 largest ethnic groups in Polk County, IA

White (Non-Hispanic)
376k ± 375
White (Hispanic)
33.3k ± 3.06k
Black or African American (Non-Hispanic)
31.5k ± 2.49k

8.53%

Hispanic Population

41.5k people

8.53% of the people in Polk County, IA are hispanic (41.5k people).

The following chart shows the 7 races represented in Polk County, IA as a share of the total population.

Heritage

Foreign-Born Population

8.74%

2018 Foreign-Born Population

42.6k people

8.66%

2017 Foreign-Born Population

41.7k people

As of 2018, 8.74% of Polk County, IA residents (42.6k people) were born outside of the United States, which is lower than the national average of 13.7%. In 2017, the percentage of foreign-born citizens in Polk County, IA was 8.66%, meaning that the rate has been increasing.

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

Age by Nativity

Median Native-Born Age

± 0.3

Median Foreign-Born Age

± 0.7

In 2018, the median age of all people in Polk County, IA was 35.8. Native-born citizens, with a median age of 36, were generally younger than than foreign-born citizens, with a median age of 37. But people in Polk County, IA are getting getting older. In 2017, the average age of all Polk County, IA residents was 36.

Global Diversity

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

Most Common Origin

Mexico
47,025 ± 5,284 people
India
11,319 ± 2,607 people
Vietnam
8,255 ± 2,228 people

In 2018, the most common birthplace for the foreign-born residents of Iowa was Mexico, the natal country of 47,025 Iowa residents, followed by India with 11,319 and Vietnam with 8,255.

Citizenship

94%

2018 Citizenship

95.2%

2017 Citizenship

As of 2018, 94% of Polk County, IA residents were US citizens, which is higher than the national average of 93.2%. In 2017, the percentage of US citizens in Polk County, IA was 95.2%, meaning that the rate of citizenship has been decreasing.

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

Military

Veterans

Most Common Service Period

Vietnam
7,411 ± 1,419
Gulf War (1990s)
4,039 ± 1,081
Gulf War (2001-)
3,850 ± 1,061

Polk County, IA has a large population of military personnel who served in Vietnam, 1.83 times greater than any other conflict.

Economy

Median household income in Polk County, IA is $68,291. In 2018, the tract with the highest Median Household Income in Polk County, IA was Census Tract 117.01 with a value of $126,767, followed by Census Tract 30.02 and Census Tract 112.03, with respective values of $120,313 and $119,638.

Males in Iowa have an average income that is 1.34 times higher than the average income of females, which is $45,872. The income inequality in Iowa (measured using the Gini index) is 0.44, which is lower than than the national average.

The economy of Polk County, IA employs 262k people. The largest industries in Polk County, IA are Health Care & Social Assistance (35,579 people), Finance & Insurance (35,222 people), and Retail Trade (30,007 people), and the highest paying industries are Public Administration ($72,897), Professional, Scientific, & Technical Services ($65,616), and Utilities ($63,321).

Wages

Median Household Income

$68,291

2018 value

± $2,788

3.48%

1 Year Growth

± 4.94%

Households in Polk County, IA have a median annual income of $68,291, which is more than the median annual income of $61,937 across the entire United States. This is in comparison to a median income of $65,995 in 2017, which represents a 3.48% annual growth.

The following chart shows how the median household income in Polk County, IA compares to that of its neighboring and parent geographies.

Wage by Gender in Common Jobs

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

$61,560

Average Male Salary in Iowa

± $1,647

$45,872

Average Female Salary in Iowa

± $1,352

In 2018, full-time male employees in Iowa made 1.34 times more than female employees.

This chart shows the gender-based wage disparity in the 5 most common occupations in Iowa by number of full-time employees.

Wage by Race and Ethnicity in Common Jobs

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

Highest Average Salaries by Race & Ethnicity in Iowa

Native Hawaiian and Other Pacific Islander
$54,930 ± $25,954
White
$47,771 ± $1,043
Asian
$43,191 ± $4,474

In 2018 the highest paid race/ethnicity of Iowa workers was Native Hawaiian and Other Pacific Islander. These workers were paid 1.15 times more than White workers, who made the second highest salary of any race/ethnicity in Iowa.

This chart shows the race- and ethnicity-based wage disparities in the 5 most common occupations in Iowa by number of full-time employees.

Wage Distribution

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

0.44

2018 Wage GINI in Iowa

0.434

2017 Wage GINI in Iowa

In 2018, the income inequality in Iowa was 0.44 according to the GINI calculation of the wage distribution. Income inequality had a 1.35% growth from 2017 to 2018, which means that wage distribution grew somewhat less even. The GINI for Iowa was lower than than the national average of 0.479. 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.

Income by Location

Use the dropdown to filter by race/ethnicity.

Highest Median Household Income (Total)

Census Tract 117.01
Census Tract 30.02
Census Tract 112.03

In 2018, the tract with the highest Median Household Income (Total) in Polk County, IA was Census Tract 117.01 with a value of $126,767, followed by Census Tract 30.02 and Census Tract 112.03, with respective values of $120,313 and $119,638.

The following map shows all of the tracts in Polk County, IA colored by their Median Household Income (Total).

Poverty by Age and Gender

Females 18 - 24

Largest Demographic Living in Poverty

11.1% of the population for whom poverty status is determined in Polk County, IA (51.7k out of 465k people) live below the poverty line, a number that is lower than the national average of 13.1%. The largest demographic living in poverty are Females 18 - 24, followed by Females 25 - 34 and then Females 35 - 44.

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.

Poverty by Race and Ethnicity

Largest Race or Ethnicity Living in Poverty

White
35,010 ± 1,426
Hispanic
9,084 ± 666
Black
8,511 ± 720

The most common racial or ethnic group living below the poverty line in Polk County, IA is White, followed by Hispanic and Black.

Occupations

Employment by Occupations

262k

2018 Value

± 9,072

0.307%

1 Year growth

± 4.78%

From 2017 to 2018, employment in Polk County, IA grew at a rate of 0.307%, from 261k employees to 262k employees.

The most common job groups, by number of people living in Polk County, IA, are Sales & Related Occupations (30,052 people), Office & Administrative Support Occupations (29,409 people), and Management Occupations (23,776 people). This chart illustrates the share breakdown of the primary jobs held by residents of Polk County, IA.

Most Common

The most common jobs held by residents of Polk County, IA, by number of employees, are Sales & Related Occupations (30,052 people), Office & Administrative Support Occupations (29,409 people), and Management Occupations (23,776 people).

Most Specialized

Compared to other counties, Polk County, IA has an unusually high number of residents working as Legal Occupations (1.57 times higher than expected), Computer & Mathematical Occupations (1.56 times), and Business & Financial Operations Occupations (1.53 times).

Highest Paid

The highest paid jobs held by residents of Polk County, IA, by median earnings, are Legal Occupations ($117,860), Computer & Mathematical Occupations ($76,359), and Management Occupations ($68,737).

Industries

Employment by Industries

262k

2018 Value

± 9,072

0.307%

1 Year growth

± 4.78%

From 2017 to 2018, employment in Polk County, IA grew at a rate of 0.307%, from 261k employees to 262k employees.

The most common employment sectors for those who live in Polk County, IA, are Health Care & Social Assistance (35,579 people), Finance & Insurance (35,222 people), and Retail Trade (30,007 people). This chart shows the share breakdown of the primary industries for residents of Polk County, IA, though some of these residents may live in Polk County, IA and work somewhere else. Census data is tagged to a residential address, not a work address.

Most Common

The most common industries in Polk County, IA, by number of employees, are Health Care & Social Assistance (35,579 people), Finance & Insurance (35,222 people), and Retail Trade (30,007 people).

Most Specialized

Compared to other counties, Polk County, IA has an unusually high number of Finance & Insurance (2.9 times higher than expected), Wholesale Trade (1.26 times), and Management of Companies & Enterprises (1.17 times) industries.

Highest Paying

The highest paying industries in Polk County, IA, by median earnings, are Public Administration ($72,897), Professional, Scientific, & Technical Services ($65,616), and Utilities ($63,321).

Domestic Trade

Domestic Production & Consumption

Domestic production and consumption consists of products and services shipped from Iowa to other states, or from other states to Iowa.

Top Domestic Production in Dollars

In 2015, the top outbound Iowa product (by dollars) was Cereal grains with $24.8B, followed by Machinery ($18.8B) and Other ag prods. ($18.2B).

The following chart shows the share of these products in relation to all outbound Iowa products.

Domestic Trade Growth

Showing data for Iowa.

$245B

2015 Value in Iowa

$363B

Projected 2045 Value in Iowa

47.9% growth

In 2015, total outbound Iowa trade was $245B. This is expected to increase 47.9% to $363B by 2045.

The following chart shows how the domestic outbound Iowa trade is projected to change in comparison to its neighboring states.

Interstate Trade

Interstate trade consists of products and services shipped from Iowa to other states, or from other states to Iowa.

Most Common Trade Partners

Illinois
$26.2B
Minnesota
$16.1B
Nebraska
$11.4B

In 2015, the top outbound Iowa domestic partner for goods and services (by dollars) was Illinois with $26.2B, followed by Minnesota with $16.1B and Nebraska and $11.4B.

The following map shows the amount of trade that Iowa shares with each state (excluding itself).

Education

In 2017, universities in Polk County, IA awarded 7,875 degrees. The student population of Polk County, IA is skewed towards women, with 14,382 male students and 18,983 female students.

Most students graduating from Universities in Polk County, IA are White (6,312 and 81.6%), followed by Hispanic or Latino (339 and 4.38%), Black or African American (309 and 3.99%), and Unknown (300 and 3.88%).

The largest universities in Polk County, IA by number of degrees awarded are Des Moines Area Community College (4,398 and 55.8%), Drake University (1,554 and 19.7%), and Grand View University (646 and 8.2%).

The most popular majors in Polk County, IA are Liberal Arts & Sciences (1,310 and 16.6%), General Studies (666 and 8.46%), and Registered Nursing (442 and 5.61%).

The median tuition costs in Polk County, IA are $21,718 for private four year colleges, and $N/A and $N/A respectively, for public four year colleges for in-state students and out-of-state students.

Concentrations

Most Common

Registered Nursing
241 degree-majorss awarded
Liberal Arts & Sciences
1,276 degree-majorss awarded
General Studies
666 degree-majorss awarded

In 2015, the most common concentation for Associates Degree recipients in Polk County, IA was Registered Nursing with 241 degree-majorss awarded.

This visualization illustrates the percentage of students graduating with a Associates Degree from schools in Polk County, IA according to their major.

Universities

Largest Universities by degrees awarded

Des Moines Area Community College
4,398 degrees awarded
Drake University
1,554 degrees awarded
Grand View University
646 degrees awarded

$N/A

Median In-State Public

$21,718

Median Private

In 2017, the Polk County, IA institution with the largest number of graduating students was Des Moines Area Community College with 4,398 degrees awarded.

Student Gender for Common Institutions

3,416

Degrees Awarded to Men

4,459

Degrees Awarded to Women

In 2017, 3,416 men were awarded degrees from institutions in Polk County, IA, which is 0.766 times less than the 4,459 female students who received degrees in the same year.

This chart displays the gender disparity between the top 5 institutions in Polk County, IA by degrees awarded.

Student Race and Ethnicity

Most Common Student Race or Ethnicity

White
6,312 degrees awarded
Hispanic or Latino
339 degrees awarded
Black or African American
309 degrees awarded

In 2017 the majority of degrees awarded at institutions in Polk County, IA were to White students. These 6,312 degrees mean that there were 18.6 times more White students then the next closest race/ethnicity group, Hispanic or Latino, with 339 degrees awarded.

Housing & Living

The median property value in Polk County, IA was $189,200 in 2018, which is 0.824 times smaller than the national average of $229,700. Between 2017 and 2018 the median property value increased from $180,700 to $189,200, a 4.7% increase. The homeownership rate in Polk County, IA is 67.8%, which is higher than the national average of 63.9%. People in Polk County, IA have an average commute time of 18.9 minutes, and they commute by Drove Alone. Car ownership in Polk County, IA is approximately the same as the national average, with an average of 2 cars per household.

Housing

Property Value

$189,200

2018 Median

± $5,620

$180,700

2017 Median

± $5,336

In 2018, the median property value in Polk County, IA grew to to $189,200 from the previous year's value of $180,700.

The following charts display, first, the property values in Polk County, IA compared to it's parent and neighbor geographies and, second, owner-occupied housing units distributed between a series of property value buckets compared to the national averages for each bucket. In Polk County, IA the largest share of households have a property value in the $200k - $250k range.

Household Income

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

$68,291

Median Household Income

± $2,788

190k

Number of Households

± 7,224

In 2018, the median household income of the 190k households in Polk County, IA grew to $68,291 from the previous year's value of $65,995.

The following chart displays the households in Polk 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.

Property Taxes

$3k+

Average Range

This chart shows the households in Polk County, IA distributed between a series of property tax buckets compared to the national averages for each bucket. In Polk County, IA the largest share of households pay taxes in the $3k+ range.

Rent vs Own

67.8%

2018 Homeownership

68%

2017 Homeownership

In 2018, 67.8% of the housing units in Polk County, IA were occupied by their owner. This percentage declined from the previous year's rate of 68%.

This percentage of owner-occupation is higher than the national average of 63.9%. This chart shows the ownership percentage in Polk County, IA compared it's parent and neighboring geographies.

Commute Time

18.9 minutes

Average Travel Time

Using averages, employees in Polk County, IA have a shorter commute time (18.9 minutes) than the normal US worker (25.7 minutes). Additionally, 0.971% of the workforce in Polk County, IA have "super commutes" in excess of 90 minutes.

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

Commuter Transportation

Most Common Method of Travel

Drove Alone
82.8%
Carpooled
8.07%
Worked At Home
5.48%

In 2018, the most common method of travel for workers in Polk County, IA was Drove Alone (82.8%), followed by those who Carpooled (8.07%) and those who Worked At Home (5.48%).

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.

Transportation

Car Ownership

2 cars

Average Number

The following chart displays the households in Polk County, IA distributed between a series of car ownership buckets compared to the national averages for each bucket. The largest share of households in Polk County, IA have 2 cars, followed by 3 cars.

Health

95.1% of the population of Polk County, IA has health coverage, with 58.8% on employee plans, 13.6% on Medicaid, 9.65% on Medicare, 12.3% on non-group plans, and 0.77% on military or VA plans.

Per capita personal health care spending in Iowa was $8,200 in 2014. This is a 5.05% increase from the previous year ($7,806).

Primary care physicians in Polk County, IA see 1037 patients per year on average, which represents a 0.387% increase from the previous year (1033 patients). Compare this to dentists who see 1468 patients per year, and mental health providers who see 468 patients per year.

Comparing across all counties in the state, Appanoose County has the highest prevalence of diabetes (13.3%). Additionally, Union County has the highest prevalence of adult obesity (39.4%)

Patient to Clinician Ratios

1,037 to 1

Patient to Primary Care Physician Ratio in Polk County, IA

Primary care physicians in Polk County, IA see an average of 1,037 patients per year. This represents a 0.387% increase from the previous year (1,033 patients).

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

Behavioral Health Conditions

Data only available at the state level.

State with the Highest Prevalence

West Virginia
8.26% of the population affected
Arkansas
8.13% of the population affected
New Hampshire
7.98% of the population affected

In 2016, West Virginia had the highest prevalence of adults with major depressive episode, with 8.26% of the population affected. The second highest is Arkansas (8.13%), followed by New Hampshire (7.98%).

The following map shows the percent of individuals with major depressive episode by state over multiple years.

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.

Access and Quality

Data only available at state level.

Most prevalent states

Mississippi
19.2% of adults
Texas
17.9% of adults
Louisiana
17.6% of adults

In 2016, Mississippi had the highest prevalence of adults who haven't seen a doctor in the past 12 months due to cost, at 19.2%. It is followed by Texas (17.9%) and Louisiana (17.6%).

The following map shows the prevalence of adults who haven't seen a doctor in the past 12 months due to cost by state over multiple years.

Health Care Spending

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

$8,200

Total Per Capita Spending on Personal Health Care in Iowa

$4,076

Per Enrollee Private Health Insurance Spending on Personal Health Care

$6,702

Per Enrollee Medicaid Spending on Personal Health Care

$9,317

Per Enrollee Medicare Spending on Personal Health Care

Between 2013 and 2014, all personal health care spending per capita in Iowa (including private, Medicare, and Medicaid) grew 5.05%, from $7,806 to $8,200.

The following chart shows how this spending changed over time in comparison to Medicaid, Medicare, and private insurance spending, per enrollee.

Health Care Coverage

4.91%

Uninsured

58.8%

Employer Coverage

13.6%

Medicaid

9.65%

Medicare

12.3%

Non-Group

0.77%

Military or VA

Between N/A and 2017, the percent of uninsured citizens in Polk County, IA N/A by N/A from N/A% to 4.91%.

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