South Dakota Population and Demographics

Are you tired of spending 10+ hours searching for demographic and population data for South Dakota? We have all of the data you need by state, county, city, and zip code that will save you many hours of research!

In this article, we'll explore most of the 190+ data points we have for South Dakota, covering popular demographics statistics like household income, race, age and gender, educational attainment, poverty, housing, and transportation.

The data on this page is from the 2021 American Community Survey (ACS) 5-Year survey from the US Census Bureau.

Richest Zip Codes in South Dakota

In the table below, we've ranked the richest zip codes in South Dakota based on the average (or mean) household income. To do this, we only look at zip codes that have a population of at least 500 people and a reasonable margin of error for the data.

If the margin of error for the mean income is greater than 50% of the estimate, we don't use it. This is to try and make the data less likely to be skewed by outliers with very small population areas or estimates that are not very accurate.

Rank ZIP Code County Mean Income
1 57038 Union County $150,957.00
2 57479 Brown County $143,918.00
3 57075 Lake County $142,031.00
4 57015 Turner County $139,025.00
5 57020 Minnehaha County $137,536.00
6 57108 Lincoln County, Minnehaha County $135,453.00
7 57440 Spink County $130,355.00
8 57049 Union County $123,681.00
9 57005 Minnehaha County $120,651.00
10 57055 Minnehaha County $117,172.00

To view details demographics data for a specific zip code, click on the link in the table above. You can also read our article here on the richest zip codes in South Dakota.

Richest Cities in South Dakota

We can also find the same information for the richest cities in South Dakota. The table below ranks the top 10 cities in South Dakota by average household income by using the same criteria as we did with the zip codes.

Rank City County Mean Income
1 Jefferson Union County $216,750.00
2 Lyons Minnehaha County $174,788.00
3 Lake View Lake County $171,253.00
4 Split Rock Minnehaha County $162,366.00
5 Big Sioux Union County $158,110.00
6 Delapre Lincoln County $152,911.00
7 Wentworth Lake County $151,556.00
8 West Walworth Walworth County $146,695.00
9 Mount Rushmore Pennington County $136,909.00
10 Wall Lake Minnehaha County $136,454.00

To view details demographics data for a specific city, click on the link in the table above. You can also read our article here on the richest cities in South Dakota.

Median Household Income

According to the latest ACS 5-year survey in 2020, the median household income in South Dakota is $59,896.00.

The chart below shows the average household income by age in South Dakota.

  • Under 25
  • 25 to 44
  • 45 to 64
  • 65 and over

Average Household Income

A very commonly asked question is "what is the average household income in South Dakota?". The official term for the average household income is the mean household income. The mean household income is the total income of all households divided by the number of households.

The average (or mean) household income in South Dakota is $77,932.00.

5.19% of households in South Dakota are classed as high income households (making $200,000+ per year).

The difference between a median and an average income

The difference between a median and mean household income is that the median income is the middle point of the set of numbers whereas the mean income is an average of all numbers.

Both metrics are important when looking at the income statistics for South Dakota but because the median value doesn't depend on other numbers in the dataset, it doesn't change as much when some of the values are extremely low or extremely high.

Household Income Tiers for South Dakota

We can also look at the household income tiers. This lets you see how many households fall into each of the earnings brackets and what percentage that bracket is of the total number of households.

The chart below shows the household income brackets to see which age groups have the highest median income. The actual data is more granular than these brackets, but we've simplified them into bigger categories to make reviewing the data for South Dakota easier to view.

You can purchase the raw data above, which will have the full income tiers with smaller jumps in household income.

  • Less than $24,999
  • $25,000 to $49,999
  • $50,000 to $74,999
  • $75,000 to $99,999
  • $100,000 to $149,999
  • $150,000 to $199,999
  • $200,000 or more

Per Capita Income

The per capita income is the average income of all people in South Dakota. This is calculated by dividing the total income of all people in South Dakota by the total number of people in South Dakota.

It differs from the average or mean household income because it includes all people in South Dakota and not just the people who earn an income (i.e. children, retirees, unemployed, etc.).

The per capita income in South Dakota is $31,415.00.

Population in South Dakota by Race and Ethnicity

The total population in South Dakota is currently 879,336 people.

The race and ethnicity of the population in South Dakota can be very important for social research, economics, and marketing to a multi-culturial society.

Whether you want to target products or services to a particular race or ethnicity, or provide housing and new businesses to improve areas with a larger ethnic minority population, this data is very valuable for discovering suitable areas.

The chart below breaks down the population and percentage for each race and ethnicity in South Dakota.

  • 80.80% White
  • 2.10% Black/African American
  • 8.00% Native
  • 4.30% Hispanic
  • 1.40% Asian
  • 0.10% Hawaiian/Pacific Islander
  • 3.10% Two or more races
  • 0.20% Other

Population of South Dakota by Age and Gender

Another very important demographics statistic for South Dakota is the age and gender of the population. The age and gender of the population can be used to track trends in population growth or decline, and for businesses, the data can be used to identify people important to you and your business need.

In the table below, we show age groups at a 10 year granularity for ease of use. The raw data, which can be purchased above, includes age and gender at a 5 year granularity.

Age Group Male Female
0 to 9 Years 61,553 60,208
10 to 19 Years 63,070 58,600
20 to 29 Years 59,515 54,880
30 to 39 Years 61,226 55,175
40 to 49 Years 48,166 46,205
50 to 59 Years 53,526 53,427
60 to 69 Years 56,293 53,667
70 Years and over 43,112 53,162

Education Levels

Educational attainment is a very useful statistic that can give insights into other data such as the average household income, unemployment levels, and literacy.

What this means is that it is likely for areas that have higher levels of education to have higher average household incomes, lower unemployment rates, and higher literacy rates.

The chart below shows the educational attainment of the population in South Dakota.

  • Master's degree or higher
  • Bachelor's degree
  • Some college or associate's degree
  • High school diploma or equivalent
  • Less than high school diploma

Unemployment Rates

The unemployment rate is the percentage of the population that is actively looking for work but is unable to find a job. The unemployment rate is a very important statistic for South Dakota because it can show how many people are actively looking for work and how many people are unable to find a job.

Lower levels of unemployment is generally seen as a positive sign for the economy. It also makes the government in South Dakota look good because it shows that they are doing a good job of creating jobs, working to capacity, being efficient, and keeping the economy strong.

The unemployment rate is calculated using the total population in South Dakota that are over the age of 16.

The current population in South Dakota that are over the age of 16 is 686,625 people.

The unemployment rate in South Dakota is 32.10%, which means 220,445 people are unemployed.

Median Age in South Dakota

The median age is an interesting metric because it gives us an idea of the age distribution of people in South Dakota. You know when you see a median age that it is the age where half of the population is older and half is younger than it.

For demographic studies, this can be used to infer and compare date to things such as birth rates, the age of parents, and so on.

An increasing median age can be a sign of an aging population, which can be a sign of a declining population. This is because older people tend to have fewer children and die more often than younger people.

The median age in South Dakota is 37.1 years old.

We can also look at the median age by gender to compare the see how each group compares to the total median age:

Median age by gender in South Dakota







Households and Families

There are a total of 345,779 households in South Dakota, and the average household size is 2.46 people.

For families, the total number is 216,840, and the average family size is 3.09 people.

7.70% of those families in South Dakota are living below the poverty line.

The table below shows the poverty thresholds for South Dakota in 2022.

Household Size Poverty Threshold
1 Person $13,590.00
2 People $18,310.00
3 People $23,030.00
4 People $27,750.00
5 People $32,470.00
6 People $37,190.00
7 People $41,910.00
8 People $46,630.00

Please note that the poverty thresholds shown above are from 2022, while the latest demographics data we have is from 2020.

Households and Families by Marital Status

There are four types of household and family, as defined by the Census Bureau:

  • Married-couple
  • Male householder, no spouse present
  • Female householder, no spouse present
  • Nonfamily household

In the table below, you can see the total households and families in South Dakota for each type, as well as the average sizes.

Married Male Female Nonfamily
Total Households 170,992 15,622 30,226 128,939
Average Household Size 3.08 3.32 3.64 1.25
Total Families 170,992 15,622 30,226 0
Average Household Size 3.06 2.88 3.39 0

Housing Data in South Dakota

There are total of 391,857 housing units in South Dakota. Of those units, 345,779 (88.24%) are occupied, and 46,078 (11.76%) are vacant.

Rental Rates

Of the 391,857 housing units in South Dakota, 101,081 (25.80%) are occupied by renters. The median rent paid by renters is $809.00.

Owner occupied housing units make up the remaining 60.40% of housing units, with 236,677 housing units in total.

The table below breaks down how much rent is paid by renters in South Dakota.

  • No rent paid
  • Less than $500
  • $500 to $999
  • $1,000 to $1,499
  • $1,500 to $1,999
  • $2,000 to $2,499
  • $2,500 to $2,999
  • $3,000 or more

Property Values

The median value of a property in South Dakota is $187,800.00.

The table below breaks down the range of valuations for all properties in South Dakota.

  • Less than $50,000
  • $50,000 to $99,999
  • $100,000 to $149,999
  • $150,000 to $199,999
  • $200,000 to $299,999
  • $300,000 to $499,999
  • $500,000 to $999,999
  • $1,000,000 or more

Property Age

We can also look at the number of properties built in a given year to see the spread of property age in South Dakota.

  • 1939 or earlier
  • 1940 to 1949
  • 1950 to 1959
  • 1960 to 1969
  • 1970 to 1979
  • 1980 to 1989
  • 1990 to 1999
  • 2000 to 2009
  • 2010 to 2013
  • 2014 or later

Vehicles Available per Household

Finally, we have data on how many vehicles each household in South Dakota has. The table below breaks down the number of vehicles available per household.

  • No vehicles available
  • 1 vehicle available
  • 2 vehicles available
  • 3 or more vehicles available

Commuting to Work in South Dakota

The time and means of commuting to work are useful metrics to look at because they can be correlated against other data such as income and education level.

Does a longer commuting time indicate a higher average income? If so, has the huge increase in home working during the pandemic changed this?

Using these metrics, we can get a better understanding of the demographics of South Dakota, how they commute, and how that correlates to other data points.

The average travel time is 17.4 minutes, and the chart below covers the range of travel times across the population of South Dakota.

  • Less than 5 minutes
  • 5 to 9 minutes
  • 10 to 14 minutes
  • 15 to 19 minutes
  • 20 to 24 minutes
  • 25 to 29 minutes
  • 30 to 34 minutes
  • 35 to 39 minutes
  • 40 to 44 minutes
  • 45 to 59 minutes
  • 60 to 89 minutes
  • 90 or more minutes

We can also look at the means of transport in South Dakota to see which modes of transport people are using to commute to work.

  • Drove alone
  • Carpooled
  • Public transportation
  • Walked
  • Other means
  • Worked from home


Hopefully this article has given you the demographics data you were looking for in South Dakota.

If you need more demographics data, or you need the data listed above in spreadsheet form with more granular grouping, head back to the top of this page where you can purchase the complete demographics data for South Dakota.

Link To or Reference This Page

We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "South Dakota Population and Demographics". Accessed on February 1, 2023.

  • "South Dakota Population and Demographics"., Accessed 1 February, 2023

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