Clay County, SD

County

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    2024 Population
    15,219
    US Senator
    John Thune
    Republican Party
    US Senator
    Mike Rounds
    Republican Party
    US Representative
    Dusty Johnson
    Republican Party
    2024 Median Age
    24.9
    1.63% 1-year increase
    2024 Poverty Rate
    19.7%
    0.487% 1-year decrease
    2024 Median Household Income
    $56,850
    3.31% 1-year decline
    2024 Median Property Value
    $232,300
    4.73% 1-year growth

    About

    None of the households in Clay County, SD 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.

    97.4% of the residents in Clay County, SD are U.S. citizens.

    In 2024, the median property value in Clay County, SD was $232,300, and the homeownership rate was 50.8%.

    Most people in Clay County, SD drove alone to work, and the average commute time was 19.5 minutes. The average car ownership in Clay County, SD was 2 cars per household.

    United StatesSouth DakotaVermillion, SD

    Population & Diversity

    Clay County, SD is home to a population of 15.2k people, from which 97.4% are citizens. As of 2024, 3.59% of Clay County, SD residents were born outside of the country (546 people).

    In 2024, there were 28.3 times more White (Non-Hispanic) residents (12.8k people) in Clay County, SD than any other race or ethnicity. There were 452 Asian (Non-Hispanic) and 417 Two Races Excluding Other, & Three or More Races (Non-Hispanic) residents, the second and third most common ethnic groups.

    Population & Diversity

    Citizenship

    97.4%
    2024 Citizenship
    96.1%
    2023 Citizenship

    As of 2024, 97.4% of Clay County, SD residents were US citizens, which is higher than the national average of 93.2%. In 2023, the percentage of US citizens in Clay County, SD was 96.1%, meaning that the rate of citizenship has been increasing.

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

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    Diversity

    Race and Ethnicity

    The 3 largest ethnic groups in Clay County, SD
    1. White (Non-Hispanic)
      12.8k ± 262
    2. Asian (Non-Hispanic)
      452 ± 17
    3. Two Races Excluding Other, & Three or More Races (Non-Hispanic)
      417 ± 136
    3.31%
    Hispanic Population
    504 people

    In 2024, there were 28.3 times more White (Non-Hispanic) residents (12.8k people) in Clay County, SD than any other race or ethnicity. There were 452 Asian (Non-Hispanic) and 417 Two Races Excluding Other, & Three or More Races (Non-Hispanic) residents, the second and third most common ethnic groups.

    3.31% of the people in Clay County, SD are hispanic (504 people).

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

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    Global Diversity

    The PUMS dataset is not available at the County level, so we are showing data for South Dakota.
    Most Common Origin
    1. Mexico
      3,429 ± 1,435 people
    2. Guatemala
      2,883 ± 1,316 people
    3. Ethiopia
      2,826 ± 1,303 people

    In 2024, the most common birthplace for the foreign-born residents of South Dakota was Mexico, the natal country of 3,429 South Dakota residents, followed by Guatemala with 2,883 and Ethiopia with 2,826.

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    Foreign-Born Population

    3.59%
    2024 Foreign-Born Population
    546 people
    4.8%
    2023 Foreign-Born Population
    726 people

    As of 2024, 3.59% of Clay County, SD residents (546 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 Clay County, SD was 4.8%, meaning that the rate has been decreasing.

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

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    Military

    Veterans

    Most Common Service Period
    1. Gulf War (2001-)
      189 ± 102
    2. Vietnam
      140 ± 73
    3. Korea
      75 ± 51

    Clay County, SD has a large population of military personnel who served in Gulf War (2001-), 1.35 times greater than any other conflict.

    The chart shows the distribution of veterans by conflict in Clay County, SD.

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    Health

    90.9% of the population of Clay County, SD has health coverage, with 51.9% on employee plans, 9.87% on Medicaid, 9.29% on Medicare, 18% on non-group plans, and 1.84% on military or VA plans.

    Primary care physicians in Clay County, SD see 2,164 patients per year on average, which represents a 0% change from the previous year (2,164 patients). Compare this to dentists who see 1698 patients per year, and mental health providers who see 857 patients per year.

    By gender, of the total number of insured persons, N/A were men and N/A were women.

    Coverage

    Patient to Clinician Ratios

    2,164 to 1
    Patient to Primary Care Physician Ratio in Clay County, SD

    Primary care physicians in Clay County, SD see an average of 2,164 patients per year. This represents a 0% change from the previous year (2,164 patients).

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

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    Location of Health Services Facilities

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    Health Care Diversity

    In 2024, insured persons according to age ranges were distributed in 22.6% under 18 years, 41.3% between 18 and 34 years, 25.1% between 35 and 64 years, and 11% over 64 years.

    By gender, of the total number of insured persons, N/A were men and N/A were women.

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

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    Uninsured People

    9.11%
    Uninsured
    51.9%
    Employer Coverage
    9.87%
    Medicaid
    9.29%
    Medicare
    18%
    Non-Group
    1.84%
    Military or VA

    Between 2023 and 2024, the percent of uninsured citizens in Clay County, SD declined by 2.11% from 9.31% to 9.11%.

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

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    Health Indicators

    Health Outcomes

    Indicator

    In 2025, the average number of mentally unhealthy days reported in past 30 days (age-adjusted) was 4.74 in Clay County, SD.

    The graphic shows the trend of the indicator in Clay County, SD.

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    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 39.9% in Clay County, SD.

    The graphic shows the trend of the indicator in Clay County, SD.

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    Clinical Care

    Indicator

    In 2025, the percentage of population under age 65 without health insurance was 10.1% in Clay County, SD.

    The graphic shows the trend of the indicator in Clay County, SD.

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    Economy

    Employment

    Unemployment Insurance Claims

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

    This chart shows weekly unemployment insurance claims in South Dakota (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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    Industries

    Median Earnings by Industry

    $41,739
    Median earning men ± $5,378
    $24,632
    Median earning women ± $6,734

    The industries with the best median earnings for men in 2024 are Finance & Insurance, & Real Estate & Rental & Leasing ($93,547), Transportation & Warehousing, & Utilities ($81,250), and Public Administration ($68,333).

    The industries with the best median earnings for women in 2024 are Information ($54,688), Public Administration ($44,813), and Agriculture, Forestry, Fishing & Hunting, & Mining ($41,923).

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    Employment by Industry Sector

    Data is only available at the state level. Showing data for South Dakota.
    Y-Axis
    2.37%
    Year-over-year growth
    Employment change between February 2022 and February 2023

    As of February 2023, there are 450k people employed in South Dakota. This represents a 2.37% 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 8.96%.

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

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    Establishments by Size

    The industries with the most establishments
    1. 31
      Other Services (except Public Administration)
    2. 19
      Construction
    3. 17
      Accommodation and Food Services

    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.

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    Payroll by Industry Sector

    The industries with the highest total annual payroll
    1. $52.8k
      Transportation and Warehousing
    2. $23.5k
      Retail Trade
    3. $22.7k
      Health Care and Social Assistance

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

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    Civics

    In the 2024 presidential election, the popular vote in South Dakota went to Donald J. Trump with 63.4% of the vote. The runner-up was Kamala Harris (34.2%), followed by Robert Kennedy (1.68%).

    John Thune and Mike Rounds are the senators currently representing the state of South Dakota. In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

    Clay County, SD is currently represented by Dusty Johnson in the U.S. house, and members of the House of Representives are elected to 2-year terms.

    Presidential Elections

    Voting results are not available for Clay County, SD. Showing the available data for South Dakota.
    2024 Election Results
    1. Donald J. Trump (63.4%)
      Republican Party
    2. Kamala Harris (34.2%)
      Democratic Party
    3. Robert Kennedy (1.68%)
      Independent Party

    In the 2024 presidential election, the popular vote in South Dakota went to Donald J. Trump with 63.4% of the vote. The runner-up was Kamala Harris (34.2%), followed by Robert Kennedy (1.68%).

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

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    Senator Elections

    US Senators from South Dakota

    Senatorial voting results are only available at the state level. Showing data for South Dakota.
    John Thune
    Senator from South Dakota3
    Assumed office on January 3, 2005
    Mike Rounds
    Senator from South Dakota2
    Assumed office on January 3, 2015

    John Thune and Mike Rounds are the senators currently representing South Dakota.

    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 South Dakota over time, excluding special elections, colored by their political party.

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    US Representative Elections

    US Representatives from Clay County, SD

    Dusty Johnson
    District at-large Representative
    Republican Party

    Clay County, SD is currently represented by Dusty Johnson (Republican Party).

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

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    Education

    In 2024, universities in Clay County, SD awarded 2,198 degrees. The student population of Clay County, SD in 2024 is skewed towards women, with 3,880 male students and 6,739 female students.

    Most students graduating from Universities in Clay County, SD are White (1,751 and 87.8%), Hispanic or Latino (66 and 3.31%), Two or More Races (61 and 3.06%), and Black or African American (47 and 2.36%).

    Admissions & Enrollments

    Applicants, Admissions & Enrolled

    University
    Measure

    In 2024 in Clay County, SD, the percentage of applicants admitted was 98.8%, while the percentage of admitted who enrolled was 24.1%. The number of students enrolled in 2024 was 10,619 (36.5% men and 63.5% women).

    The line chart  shows the evolution of the percentage of applicants admitted, admitted who enrolled or the number of students enrolled according to the option selected in the upper button.

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    Enrollments by Gender and Races

    Universities

    In 2024 there were 10,619 students enrolled in Clay County, SD, 36.5% men and 63.5% women.

    By race, the largest number of students enrolled was concentrated in N/A with N/A records, of which N/A% were women and N/A% men.

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    Completions

    Student Diversity

    University

    In 2024, 859 men were awarded degrees from institutions in Clay County, SD, which is 0.642 times less than the 1,339 female students who received degrees in the same year.

    In 2024, the most common race/ethnicity group awarded degrees at institutions was White students. These 1,751 degrees mean that there were 26.5 times more degrees awarded to White students then the next closest race/ethnicity group, Hispanic or Latino, with 66 degrees awarded.

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    Tuition

    Average Net Price by Sector

    Universities

    Public, 4-year or above ($7,773) is the sector with the highest median state tuition in 2024.

    Public, 4-year or above ($1,659) is the sector with the highest median state fee in 2024.

    Public, 4-year or above ($1,200) is the sector with the highest average net price of books and supplies.

    The graph shows the average net price by sector and year.

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    Housing & Living

    The median property value in Clay County, SD was $232,300 in 2024, which is 0.698 times smaller than the national average of $332,700. Between 2023 and 2024 the median property value increased from $221,800 to $232,300, a 4.73% increase. The homeownership rate in Clay County, SD is 50.8%, which is lower than the national average of 65.2%.

    People in Clay County, SD have an average commute time of 19.5 minutes, and they drove alone to work. Car ownership in Clay County, SD is approximately the same as the national average, with an average of 2 cars per household.

    In 2025, 20.7% of the population was living with severe housing problems in Clay County, SD. From 2014 to 2025, the indicator grew 2.28%.

    Housing

    Property

    $232,300
    Median Property Value 2024
    ±$23,314
    $2,819
    Median Property Taxes
    ±$341

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

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

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    Rent vs Own

    50.8%
    Homeownership
    2024
    64.4%
    Homeowners with Mortgage
    2024

    In 2024, 50.8% of the housing units in Clay County, SD were occupied by their owner. This percentage declined from the previous year's rate of 51.8%.

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

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    Equity

    Household Income

    Please note that the buckets used in this visualization were not evenly distributed by ACS when publishing the data.
    $56,850
    Median Household Income
    ± $5,165
    5.55k
    Number of Households
    ± 551

    In 2024, the median household income of the 5.55k households in Clay County, SD declined from $56,850 from the previous year's value of $58,794.

    The following chart displays the households in Clay County, SD 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.

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    Wage Distribution

    The closest comparable wage GINI for Clay County, SD is from South Dakota.
    0.44
    2024 Wage GINI in South Dakota
    0.443
    2023 Wage GINI in South Dakota

    In 2024, the income inequality in South Dakota was 0.44 according to the GINI calculation of the wage distribution. Income inequality had a 0.642% decline from 2023 to 2024, which means that wage distribution grew somewhat more even. The GINI for South Dakota was lower than than the national average of 0.474. In other words, wages are distributed more evenly in South Dakota in comparison to the national average.

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

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    Transportation

    Commuter Transportation

    Most Common Commute in 2024
    1. Drove Alone (75.4%)
    2. Walked (8.86%)
    3. Worked At Home (6.62%)

    In 2024, 75.4% of workers in Clay County, SD drove alone to work, followed by those who walked to work (8.86%) and those who worked at home (6.62%).

    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.

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    Commute Time

    19.5 minutes
    Average Travel Time

    Using averages, employees in Clay County, SD have a shorter commute time (19.5 minutes) than the normal US worker (26.4 minutes). Additionally, 3.43% of the workforce in Clay County, SD have "super commutes" in excess of 90 minutes.

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

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    Car Ownership

    2 cars
    Average Number

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

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    Poverty

    Severe Housing Problems

    In 2025, 20.7% of the population was living with severe housing problems in Clay County, SD. From 2014 to 2025, the indicator grew 2.28%.

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

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    Poverty & Diversity

    19.7% of the population for whom poverty status is determined in Clay County, SD (2.51k out of 12.7k people) live below the poverty line, a number that is higher than the national average of 12.5%. The largest demographic living in poverty are Females 18 - 24, followed by Males 18 - 24 and then Females 25 - 34.

    The most common racial or ethnic group living below the poverty line in Clay County, SD is White, followed by Native American and Black.

    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.

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    Security

    Crimes & Accidents

    Indicator

    In 2022, the number of reported violent crimes offenses per 100,000 population was 243 in Clay County, SD. From 2014 to 2022, the indicator grew 207% per 100,000 population.

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

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