Marshall County, SD demographics:
population, income, and more

Total population
4,344
-0.2% year-over-year change
Median household income
$78,156/yr
7.8% year-over-year change
Housing units
2,436
0.2% year-over-year change

Marshall County population

How many people live in Marshall County

Marshall County is home to 4,344 residents, according to the most recent Census data. Gender-wise, 53% of Marshall County locals are male, and 47% are female.

Total population
4,344
-0.2% year-over-year change
Gender ratio
Male
53%
2,300
Female
47%
2,044
Value Percent YoY change
Male 2,300 53% 1.2%
Female 2,044 47% -1.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Marshall County is 42, with the population distributed as follows: about 20.6% are children under 15, then 11.5% are in the 15 to 24 age group. Adults between 25 and 44 make up 20.4% of the population, while another 24.3% fall into the 45 to 64 bracket. Finally, around 23.2% are 65 or older.

Median age
42.5
Age breakdown
Under 15
20.6%
15 to 24
11.5%
25 to 44
20.4%
45 to 64
24.3%
Over 65
23.2%
Value Percent YoY change
Under 15 896 20.6% 2.0%
15 to 24 498 11.5% -9.4%
25 to 44 886 20.4% 3.8%
45 to 64 1,055 24.3% -3.0%
Over 65 1,009 23.2% 2.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Marshall County, 96.9% of the population are US-born citizens, while 0.6% have gained naturalized citizenship. At the same time, 2.5% of residents are non-citizens. As for race, 84.5% of locals are Caucasian, 0.4% are African American and 0.2% have Asian roots. There’s also a share of 6.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
96.9%
Non-U.S.-born citizens
0.6%
Non-citizens
2.5%
Value Percent YoY change
U.S.-born citizens 4,208 96.9% -1.1%
Non-U.S.-born citizens 28 0.6% -22.2%
Non-citizens 108 2.5% 63.6%
Racial breakdown
White
84.5%
Black or African American
0.4%
American Indian and Alaska Native
5.9%
Asian
0.2%
Native Hawaiian and other Pacific Islander
0%
Two or more races
6.4%
Other
2.6%
Value Percent
White 3,670 84.5%
Black or African American 19 0.4%
American Indian and Alaska Native 255 5.9%
Asian 8 0.2%
Two or more races 279 6.4%
Other 113 2.6%

Households in Marshall County

A peek inside Marshall County households

Marshall County has 1,651 households, with an average of 3 members in each. Of these, 66.6% are families, while the remaining 33.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,651
0.3% year-over-year change
Average people per household
3
Non-family households
551
Family households
1,100
Value Percent YoY change
Non-family households 551 33.4% -7.7%
Family households 1,100 66.6% 4.9%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Marshall County

The housing landscape of Marshall County

Marshall County's housing consists of 2,436 units, with 82.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.6% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 6.5% of the housing landscape.

Housing units
2,436
0.2% year-over-year change
Housing types
Value Percent
1 unit, detached 2,013 82.6%
1 unit, attached 14 0.6%
2 units 7 0.3%
3 or 4 units 64 2.6%
5 to 9 units 102 4.2%
10 to 19 units 46 1.9%
20 to 49 units 31 1.3%
Mobile home 159 6.5%
Homes built since 2020
0
% year-over-year change

The age of buildings in Marshall County

In Marshall County, the median construction year is 1970. About 29% of homes were built before the 1940s, with another 3.5% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 706 29% -2.5%
Built between 1940 and 1949 86 3.5% -13.1%
Built between 1950 and 1959 181 7.4% 2.8%
Built between 1960 and 1969 236 9.7% -4.5%
Built between 1970 and 1979 446 18.3% 0.5%
Built between 1980 and 1989 195 8% 2.1%
Built between 1990 and 1999 100 4.1% -21.9%
Built between 2000 and 2009 335 13.8% 25.9%
Built between 2010 and 2019 151 6.2% -2.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Marshall County occupancy rates

Out of the 1,651 occupied housing units in Marshall County, 80.3% are owner-occupied, while 19.7% are lived in by tenants. Meanwhile, 32.2% of all homes on the local market sit vacant.

Occupied housing units
1,651
0.3% year-over-year change
Occupancy breakdown
Renter occupied
325
Owner occupied
1,326
Value Percent YoY
change
Renter occupied 325 19.7% -0.6%
Owner occupied 1,326 80.3% 0.5%
Unoccupied housing units
32.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Marshall County housing costs

Housing costs in Marshall County come to a median of $734 per month, while tenants specifically pay a median gross rent of $752.

Median housing costs per month
$734/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Marshall County
$752/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Marshall County

Marshall County education at a glance

About 38.1% of the population in Marshall County went to high school, while 19.2% pursued college studies. Another 14.9% earned an associate degree and 17.7% hold a bachelor’s. Meanwhile, 5.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 154 4.7% -3.8%
High school diploma 1,252 38.1% -3.3%
College diploma 631 19.2% 3.6%
Associate degree 490 14.9% -16.7%
Bachelor's degree 581 17.7% 5.2%
Graduate degree 179 5.4% 55.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Marshall County

How much people earn in Marshall County

The average annual household income in Marshall County was $103,822 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1.8% change from the previous year. At the same time, the median income stood at $78,156, reflecting a +7.8% shift over the same period.

Average household income in Marshall County
$103,822/year
1.8% year-over-year change
Median household income in Marshall County
$78,156/year
7.8% year-over-year change

Marshall County income by age

In Marshall County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $85,500. Those with someone between 45 and 64 in charge, often well established professionally, earn $104,286 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $51,250, while those led by someone over 65, many of whom may be retired, have about $59,097 in earnings. Overall, 94.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $51,250 3.9%
25 - 44 $85,500 4.0%
45 - 64 $104,286 3.5%
Over 65 $59,097 11.9%
Above poverty level
3,916
Below poverty level
230
Value Percent YoY
change
Above poverty level 3,916 94.4% 2.2%
Below poverty level 230 5.6% -25.1%

Employment in Marshall County

Workforce and job types in Marshall County

The job market in Marshall County is powered by 2,154 working residents, spread across a range of industries and roles. 65.3% of the working population are employed in professional or administrative positions, while 34.7% are in hands-on or service-based jobs. Also, 21.4% run their own businesses, 61.5% are employed by private companies, and 11.1% work in the public sector.

Workforce demographics

Working population
2,154
-1.7% year-over-year change
White collar
1,406
Blue collar
748
Value Percent YoY change
White collar 1,406 65.3% -4.3%
Blue collar 748 34.7% 3.6%
Employer type
Self employees
21.4%
Private companies
61.5%
Governmental workers
11.1%
Not for profit companies
6%
Value Percent YoY change
Self employees 461 21.4% -7.6%
Private companies 1,324 61.5% -1.1%
Governmental workers 239 11.1% -1.6%
Not for profit companies 130 6% 18.2%
Unemployment rate
0.3%
-70.8% year-over-year change

Available workforce

The unemployment rate in Marshall County stands at 0.3%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Marshall County

How people get around in Marshall County

In Marshall County, the average commute time is 16 minutes. Commuting methods vary: 88.8% of residents travel by personal vehicle and 4.8% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
16 min
Means of transportation
Value Percent YoY change
Car 1,904 88.8% 1.6%
Walk 104 4.8% 4.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Marshall County by zipcode?

Zipcode Population Number of households Median income Average income
57247 211 122 $50,455 $79,775
57270 764 246 $77,708 $90,927
57421 75 18 $0 $0
57430 1,828 756 $70,484 $90,358
57432 507 151 $112,765 $100,730
57454 732 236 $81,250 $101,878
57232 651 230 $93,750 $188,980

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FAQs about Marshall County demographics 

What is the total population of Marshall County?

Marshall County has a total population of 4,344 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.2% compared to a year ago.

What is the gender ratio in Marshall County?

The gender ratio in Marshall County is as follows:
  • 53% males (2,300 residents)
  • 47% females (2,044 residents)

What is the median age in Marshall County?

The median age in Marshall County is 42.5.

What is the age distribution of the population in Marshall County?

The age distribution in Marshall County is as follows:
  • Under 15: 20.6% (896 residents)
  • Ages 15-24: 11.5% (498 residents)
  • Ages 25-44: 20.4% (886 residents)
  • Ages 45-64: 24.3% (1,055 residents)
  • Over 65: 23.2% (1,009 residents)

What is the racial and ethnic makeup of Marshall County?

The racial and ethnic makeup of Marshall County is as follows:
  • White: 84.5% (3,670 residents)
  • Black or African American: 0.4% (19 residents)
  • American Indian and Alaska Native: 5.9% (255 residents)
  • Asian: 0.2% (8 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 6.4% (279 residents)
  • Other: 2.6% (113 residents)

What percentage of the population in Marshall County are U.S.-born citizens?

U.S.-born citizens represent 96.9% of the population in Marshall County.

How many housing units are there in Marshall County?

There are 2,436 housing units in Marshall County, reflecting a +0.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Marshall County and what is the average household size?

Marshall County has a total of 1,651 households, with an average of 3 people in each.

What is the median household income in Marshall County?

Marshall County has a median household income of $78,156, representing a +7.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Marshall County?

The employment rate is 99.7% in Marshall County, with a workforce of 2,154 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 65.3% (1,406 residents)
  • Blue-collar workers: 34.7% (748 residents)

Places of employment:
  • Self-employed: 21.4% (461 residents)
  • Private companies: 61.5% (1,324 residents)
  • Governmental workers: 11.1% (239 residents)
  • Not-for-profit companies: 6% (130 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025