Marshall County is a county of 4,344 people in South Dakota. Few US counties rank higher on income. Density works out to 5 people per square mile. 80% of homes are owner-occupied. The typical home is worth $156,500, having roughly tripled since 2000. About 25% of adults have finished a four-year degree.
At a glance
Average income
median household income $78,156, near the US median
US median: $82,259
Older
median age 42.5
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Less affordable
home values up 91%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Marshall County
What changed most since 1990
Median home value (2024 dollars)$56,642 → $156,500(+176%)US over the same years: +67%
Median household income (2024 dollars)$43,933 → $78,156(+78%)US over the same years: +14%
Poverty rate17.7% → 6.1%(−11.6 pts)US over the same years: −0.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)22.3%(66)
US avg: 26.4%
Gulf War (1990s)26%(77)
US avg: 24.3%
Vietnam era26.7%(79)
US avg: 33.1%
Korean War8.4%(25)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 296 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Marshall County, decade by decade
Marshall County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
4,844
$43,933
$56,642
10.2%
14.5
2000
4,576
$55,683
$81,792
16.2%
18.1
2010
4,656
$59,014
$117,531
16.7%
34.0
2020
4,306
$82,487
$153,081
25.8%
36.3
2024
4,344
$78,156
$156,500
25.4%
35.8
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
