Plymouth County, IA

County

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2023 Population

25,699

0.304% 1-year growth

US Senator

Chuck Grassley

Republican Party

US Senator

Joni Ernst

Republican Party

2023 Median Age

41.1

0.489% 1-year increase

2023 Poverty Rate

6.76%

19.2% 1-year increase

2023 Median Household Income

$81,600

2.05% 1-year growth

2023 Median Property Value

$218,600

9.41% 1-year growth

2023 Employed Population

13,520

0.434% 1-year decline

About

In 2023, Plymouth County, IA had a population of 25.7k people with a median age of 41.1 and a median household income of $81,600. Between 2022 and 2023 the population of Plymouth County, IA grew from 25,621 to 25,699, a 0.304% increase and its median household income grew from $79,963 to $81,600, a 2.05% increase.

The 5 largest ethnic groups in Plymouth County, IA are White (Non-Hispanic) (88.8%), Black or African American (Non-Hispanic) (2.36%), Other (Hispanic) (2.24%), Two Races Including Other (Hispanic) (1.87%), and White (Hispanic) (1.79%).

None of the households in Plymouth 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.

97.5% of the residents in Plymouth County, IA are U.S. citizens.

In 2023, the median property value in Plymouth County, IA was $218,600, and the homeownership rate was 73.7%.

Most people in Plymouth County, IA drove alone to work, and the average commute time was 18.8 minutes. The average car ownership in Plymouth County, IA was 2 cars per household.

Plymouth County, IA borders Cherokee County, IA, O'Brien County, IA, Sioux County, IA, Woodbury County, IA, and Union County, SD.

United States Iowa Sioux City, IA-NE-SD

Population & Diversity

Plymouth County, IA is home to a population of 25.7k people, from which 97.5% are citizens. As of 2023, 4.25% of Plymouth County, IA residents were born outside of the country (1.09k people).

In 2023, there were 37.6 times more White (Non-Hispanic) residents (22.8k people) in Plymouth County, IA than any other race or ethnicity. There were 607 Black or African American (Non-Hispanic) and 575 Other (Hispanic) residents, the second and third most common ethnic groups.

Population & Diversity

Citizenship

97.5%

2023 Citizenship

97.1%

2022 Citizenship

As of 2023, 97.5% of Plymouth County, IA residents were US citizens, which is higher than the national average of 93.4%. In 2022, the percentage of US citizens in Plymouth County, IA was 97.1%, meaning that the rate of citizenship has been increasing.

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

Diversity

Race and Ethnicity

The 3 largest ethnic groups in Plymouth County, IA

White (Non-Hispanic)
22.8k ± 75
Black or African American (Non-Hispanic)
607 ± 177
Other (Hispanic)
575 ± 273

6.14%

Hispanic Population

1.58k people

6.14% of the people in Plymouth County, IA are hispanic (1.58k people).

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

Foreign-Born Population

4.25%

2023 Foreign-Born Population

1.09k people

4.5%

2022 Foreign-Born Population

1.15k people

As of 2023, 4.25% of Plymouth County, IA residents (1.09k people) were born outside of the United States, which is approximately the same as the national average of 13.8%. In 2022, the percentage of foreign-born citizens in Plymouth County, IA was 4.5%, meaning that the rate has been decreasing.

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

Military

Veterans

Most Common Service Period

Vietnam
649 ± 135
Gulf War (2001-)
240 ± 99
Gulf War (1990s)
209 ± 76

Plymouth County, IA has a large population of military personnel who served in Vietnam, 2.7 times greater than any other conflict.

Economy

The economy of Plymouth County, IA employs 13.5k people. In 2023, the largest industries in Plymouth County, IA were Manufacturing (2,788 people), Health Care & Social Assistance (2,044 people), and Retail Trade (1,227 people), and the highest paying industries were Utilities ($82,917), Real Estate & Rental & Leasing ($80,729), and Mining, Quarrying, & Oil & Gas Extraction ($78,333).

Employment

Occupations

13.5k

2023 Value

± 699

−0.434%

1 Year decline

± 7.22%

From 2022 to 2023, employment in Plymouth County, IA declined at a rate of −0.434%, from 13.6k employees to 13.5k employees.

The most common job groups, by number of people living in Plymouth County, IA, are Office & Administrative Support Occupations (1,489 people), Production Occupations (1,476 people), and Management Occupations (1,390 people). This chart illustrates the share breakdown of the primary jobs held by residents of Plymouth 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

13.5k

2023 Value

± 699

−0.434%

1 Year decline

± 7.22%

From 2022 to 2023, employment in Plymouth County, IA declined at a rate of −0.434%, from 13.6k employees to 13.5k employees.

The most common employment sectors for those who live in Plymouth County, IA, are Manufacturing (2,788 people), Health Care & Social Assistance (2,044 people), and Retail Trade (1,227 people). This chart shows the share breakdown of the primary industries for residents of Plymouth County, IA, though some of these residents may live in Plymouth County, IA and work somewhere else. Census data is tagged to a residential address, not a work address.

Median Earnings by Industry

$57,359

Median earning men ± $3,760

$40,086

Median earning women ± $2,347

The industries with the best median earnings for men in 2023 are Finance & Insurance, & Real Estate & Rental & Leasing ($89,167), Information ($73,116), and Public Administration ($70,234).

The industries with the best median earnings for women in 2023 are Finance & Insurance, & Real Estate & Rental & Leasing ($55,750), Professional, Scientific, & Management, & Administrative & Waste Management Services ($55,167), and Manufacturing ($52,835).

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

64
Other Services (except Public Administration)
60
Construction
48
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

$222k
Manufacturing
$82.5k
Transportation and Warehousing
$48.3k
Management of Companies and Enterprises

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 Plymouth 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.

US Representative Elections

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 Iowa have changed over time starting in 2008.

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Education

Completions

Awarded Degrees over Time

The graph shows the evolution of awarded degrees by degrees. Under the paragraphs, the average number of awarded degrees by university in each degree is shown.

Working Population

Educational Pyramid

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

Measure

In 2023, 0.708% of men over 25 years of age had not completed any academic degree (no schooling), while 0.723% of women were in the same situation.

This visualization shows the gender distribution of the population according to the academic level reached.

Educational Attainment

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

Race

The most common educational levels obtained by the working population in 2023 were High School or Equivalent (748k), Some college (554k), and Bachelors Degree (481k).

This visualization illustrates the percentage distribution of the population according to the highest educational level reached. You can filter the data by race by using the selector above.

Housing & Living

The median property value in Plymouth County, IA was $218,600 in 2023, which is 0.721 times smaller than the national average of $303,400. Between 2022 and 2023 the median property value increased from $199,800 to $218,600, a 9.41% increase. The homeownership rate in Plymouth County, IA is 73.7%, which is higher than the national average of 65%.

People in Plymouth County, IA have an average commute time of 18.8 minutes, and they drove alone to work. Car ownership in Plymouth County, IA is approximately the same as the national average, with an average of 2 cars per household.

Median household income in Plymouth County, IA is $81,600. In 2023, the tract with the highest Median Household Income in Plymouth County, IA was Census Tract 9706, Plymouth County, IA with a value of $107,946, followed by Census Tract 9704, Plymouth County, IA and Census Tract 9705, Plymouth County, IA, with respective values of $91,538 and $88,239.

In 2024, 7.48% of the population was living with severe housing problems in Plymouth County, IA. From 2014 to 2024, the indicator grew 1.78%.

Housing

Property

$218,600

Median Property Value 2023

±$8,699

$7,587

Median Property Taxes

±$459

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 Plymouth County, IA the largest share of households pay taxes in the $3k+ range.

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

Rent vs Own

73.7%

Homeownership

2023

62.1%

Homeowners with Mortgage

2023

In 2023, 73.7% of the housing units in Plymouth County, IA were occupied by their owner. This percentage declined from the previous year's rate of 75.3%.

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

Equity

Income by Location

Use the dropdown to filter by race/ethnicity.

Race/Ethnicity

Highest Median Household Income (Total)

Census Tract 9706, Plymouth County, IA
Census Tract 9704, Plymouth County, IA
Census Tract 9705, Plymouth County, IA

In 2023, the tract with the highest Median Household Income (Total) in Plymouth County, IA was Census Tract 9706, Plymouth County, IA with a value of $107,946, followed by Census Tract 9704, Plymouth County, IA and Census Tract 9705, Plymouth County, IA, with respective values of $91,538 and $88,239.

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

Household Income

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

$81,600

Median Household Income

± $2,809

10.3k

Number of Households

± 594

In 2023, the median household income of the 10.3k households in Plymouth County, IA grew to $81,600 from the previous year's value of $79,963.

The following chart displays the households in Plymouth 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 Plymouth County, IA is from Plymouth County, IA.

N/A Wage GINI in N/A

In N/A, the income inequality in N/A was N/A according to the GINI calculation of the wage distribution. Income inequality had a N/A N/A from N/A to N/A, which means that wage distribution grew somewhat N/A even. The GINI for N/A was N/A than the national average of 0.476. In other words, wages are distributed N/A evenly in N/A in comparison to the national average.

This chart shows the number of workers in Plymouth County, IA across various wage buckets compared to the national average.

Transportation

Commuter Transportation

Most Common Commute in 2023

Drove Alone (79.3%)
Carpooled (8.69%)
Worked At Home (8.59%)

In 2023, 79.3% of workers in Plymouth County, IA drove alone to work, followed by those who carpooled to work (8.69%) and those who worked at home (8.59%).

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

18.8 minutes

Average Travel Time

Using averages, employees in Plymouth County, IA have a shorter commute time (18.8 minutes) than the normal US worker (26.6 minutes). Additionally, 1.38% of the workforce in Plymouth County, IA have "super commutes" in excess of 90 minutes.

The chart below shows how the median household income in Plymouth 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 Plymouth County, IA distributed between a series of car ownership buckets compared to the national averages for each bucket. The largest share of households in Plymouth County, IA have 2 cars.

Poverty

Severe Housing Problems

In 2024, 7.48% of the population was living with severe housing problems in Plymouth County, IA. From 2014 to 2024, the indicator grew 1.78%.

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

Poverty & Diversity

6.76% of the population for whom poverty status is determined in Plymouth County, IA (1.71k out of 25.3k people) live below the poverty line, a number that is lower than the national average of 12.4%. The largest demographic living in poverty are Females 75+, followed by Females 65 - 74 and then Females 6 - 11.

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

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 2024, 7.6% of the children was living in poverty in Plymouth County, IA. From 2014 to 2024, the indicator declined 2.6%.

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 103 in Plymouth County, IA. From 2014 to 2022, the indicator grew 8.38 per 100,000 population.

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

Health

94.4% of the population of Plymouth County, IA has health coverage, with 52.8% on employee plans, 13.3% on Medicaid, 13.7% on Medicare, 13.3% on non-group plans, and 1.3% on military or VA plans.

Primary care physicians in Plymouth County, IA see 1,832 patients per year on average, which represents a 1.72% increase from the previous year (1,801 patients). Compare this to dentists who see 1975 patients per year, and mental health providers who see 597 patients per year.

By gender, of the total number of insured persons, 51% were men and 49% were women.

Coverage

Patient to Clinician Ratios

1,832 to 1

Patient to Primary Care Physician Ratio in Plymouth County, IA

Primary care physicians in Plymouth County, IA see an average of 1,832 patients per year. This represents a 1.72% increase from the previous year (1,801 patients).

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

Health Care Diversity

In 2023, insured persons according to age ranges were distributed in 26.5% under 18 years, 16.8% between 18 and 34 years, 38.2% between 35 and 64 years, and 18.5% over 64 years.

By gender, of the total number of insured persons, 51% were men and 49% were women.

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

Uninsured People

5.61%

Uninsured

52.8%

Employer Coverage

13.3%

Medicaid

13.7%

Medicare

13.3%

Non-Group

1.3%

Military or VA

Between 2022 and 2023, the percent of uninsured citizens in Plymouth County, IA grew by 4.03% from 5.4% to 5.61%.

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

Health Indicators

Health Outcomes

Indicator

In 2020, the number of deaths among residents under age 18 per 100,000 population was 44.2 in Plymouth County, IA.

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

Health Behaviors

Indicator

In 2024, 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 36.5% in Plymouth County, IA.

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