County · South Dakota
Marshall County, South Dakota
Marshall County, South Dakota. Marshall County had 4,426 residents in 2025 by the Census Bureau's estimate, up 2.8% since 2020, slower than South Dakota (+5.5%). It holds 35 places (5 cities, villages and boroughs, 25 towns and townships and 5 census-designated) and 1 census tract. GEOID 46091.
Residents, July 2025 estimate
4,426
Census Bureau estimate (no margin published)
2020 Census count: 4,306 · ACS 2020-2024: 4,344
Median household income
$78,156
±$10,504 (90% margin)
South Dakota: $75,081
Median home value
$156,500
±$31,245 (90% margin)
South Dakota: $257,400
Median gross rent
$752
±$61 (90% margin)
South Dakota: $946
How many people live in Marshall County, and is it growing?
The 2020 Census counted 4,306 residents in Marshall County. The Census Bureau estimates 4,426 for July 1, 2025, up 2.8% since 2020, slower than South Dakota (+5.5%). The 2020-2024 American Community Survey puts the population at 4,344 over 838 square miles of land.
| Measure | Marshall County | South Dakota | Change since 2015-2019 |
|---|---|---|---|
| Total population | 4,344 | 907,428 | −547 |
| Households | 1,651±114 | 365,544 | −222 |
| Average household size | 2.55±0.17 | 2.39 | no clear change |
| Housing units | 2,436±19 | 408,584 | −201 |
Marshall County's population since 2000
From 4,576 in 2000 to 4,426 in 2025: down 3.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Marshall County?
Marshall County holds 35 places: 5 cities, villages and boroughs (incorporated places), 25 towns and townships (county subdivisions with their own government) and 5 census-designated places. The largest is Britton with 1,199 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Britton | 1,215 | $62,898 |
|---|---|---|
| Veblen | 317 | $64,167 |
| Langford | 283 | $79,375 |
| Lake Township, Marshall CountyGEOID 4609134940 | 242 | not published |
| Weston TownshipGEOID 4609170420 | 202 | not published |
| Stena TownshipGEOID 4609161540 | 187 | not published |
| Red Iron Lake TownshipGEOID 4609153620 | 183 | not published |
| Veblen TownshipGEOID 4609166580 | 179 | $175,750 |
| Miller Township, Marshall CountyGEOID 4609142540 | 177 | $106,607 |
| Clear Lake, Marshall CountyGEOID 4612640 | 170 | $18,750 |
| Pleasant Valley Township, Marshall CountyGEOID 4609150900 | 169 | not published |
| Sunset ColonyGEOID 4662434 | 142 | not published |
| Newport ColonyGEOID 4645024 | 114 | not published |
| Buffalo Township, Marshall CountyGEOID 4609108220 | 113 | $91,447 |
| White TownshipGEOID 4609170980 | 104 | not published |
| EdenGEOID 4618180 | 94 | not published |
| Sisseton Township, Marshall CountyGEOID 4609159220 | 90 | $80,938 |
| Eden Township, Marshall CountyGEOID 4609118220 | 86 | $69,500 |
| Waverly Township, Marshall CountyGEOID 4609169500 | 72 | $32,065 |
| Newport TownshipGEOID 4609145020 | 66 | $70,938 |
| La Belle TownshipGEOID 4609134500 | 61 | not published |
| Newark TownshipGEOID 4609144780 | 55 | $140,962 |
| Lowell TownshipGEOID 4609139100 | 53 | not published |
| Dumarce TownshipGEOID 4609117300 | 53 | not published |
| Lake CityGEOID 4635220 | 45 | $41,563 |
| Hickman TownshipGEOID 4609128540 | 44 | $61,458 |
| Hamilton Township, Marshall CountyGEOID 4609126740 | 42 | not published |
| Fort TownshipGEOID 4609122180 | 36 | $39,070 |
| Wismer TownshipGEOID 4609172300 | 32 | not published |
| Nordland TownshipGEOID 4609145380 | 31 | not published |
| Victor Township, Marshall CountyGEOID 4609167100 | 27 | not published |
| KidderGEOID 4633900 | 25 | not published |
| McKinley TownshipGEOID 4609139980 | 25 | not published |
| Dayton Township, Marshall CountyGEOID 4609115660 | 23 | not published |
| Westwood ColonyGEOID 4670646 | 8 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Marshall County?
The median resident of Marshall County is 42.5 years old; 24.3% are under 18 and 23.2% are 65 or older. The largest group is non-Hispanic white residents at 83.7%, then Hispanic or Latino residents (of any race) at 6.4%. 3.1% of residents were born outside the United States.
| Measure | Marshall County | South Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.5±1.1 | 38.0 | +2.7 |
| Under 18 years | 24.3% | 24.2% | – |
| 65 years and over | 23.2%±0.8 pts | 18.0% | – |
| Hispanic or Latino (any race) | 6.4% | 4.8% | −1.9 pts |
| White alone, not Hispanic | 83.7%±0.4 pts | 79.8% | +0.7 pts |
| Black or African American alone, not Hispanic | 0.1%±0.3 pts | 2.1% | – |
| Asian alone, not Hispanic | 0.2%±1.5 pts | 1.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 5.5%±1.7 pts | 7.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.8%±1.7 pts | 4.4% | – |
| Some other race alone, not Hispanic | 0.3%±0.3 pts | 0.3% | – |
| Born outside the United States | 3.1%±1.1 pts | 4.0% | no clear change |
| Speak a language other than English at home (age 5+) | 5.9%±2.4 pts | 7.1% | – |
| Civilian veterans (age 18+) | 9.0%±2.5 pts | 7.9% | – |
| With a disability | 10.7%±2.9 pts | 12.5% | – |
| No health insurance coverage | 3.9%±1.5 pts | 9.0% | −4.1 pts |
| High school graduate or higher (age 25+) | 92.4%±2.1 pts | 93.2% | – |
| Bachelor's degree or higher (age 25+) | 25.4%±3.7 pts | 31.9% | no clear change |
| Graduate or professional degree (age 25+) | 6.1%±2.2 pts | 10.0% | – |
| Moved from another state in the past year | 1.0%±0.6 pts | 3.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Marshall County earn?
Half of Marshall County's 1,651 households earn less than $78,156 a year (±$10,504), against $75,081 in South Dakota. In 2015-2019 it was $78,424 in 2024 dollars; the margins of error cannot tell the two periods apart. 6.1% of residents live below the poverty line.
| Measure | Marshall County | South Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $78,156±$10,504 | $75,081 | no clear change |
| Mean household income | $103,822±$16,666 | $98,527 | – |
| Per capita income | $43,791±$6,542 | $40,550 | no clear change |
| People below the poverty line | 6.1%±2.2 pts | 11.9% | no clear change |
| Children under 18 below the poverty line | 4.9%±4.7 pts | 14.3% | – |
| Households receiving SNAP | 1.6%±1.3 pts | 7.9% | – |
| Households with a broadband subscription | 89.5%±2.8 pts | 89.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Marshall County?
Owners occupy 80.3% of Marshall County's occupied homes and renters 19.7%. The median owner-occupied home is valued at $156,500 by its owner (±$31,245). The median renter pays $752 a month including utilities.
| Measure | Marshall County | South Dakota | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $156,500±$31,245 | $257,400 | no clear change |
| Median gross rent | $752±$61 | $946 | no clear change |
| Renters paying 35% or more of income on rent | 9.0%±7.2 pts | 30.4% | – |
| Median monthly owner costs, with a mortgage | $1,376±$123 | $1,680 | – |
| Owner-occupied homes | 80.3%±4.5 pts | 68.6% | +6.5 pts |
| Housing units | 2,436±19 | 408,584 | −201 |
| Homeowner vacancy rate | 0.4%±0.5 pts | 0.8% | – |
| Rental vacancy rate | 23.1%±10.5 pts | 6.0% | – |
| Single-family detached homes | 82.6%±3.8 pts | 66.9% | – |
| Mobile homes | 6.5%±2.8 pts | 7.2% | – |
| Built 2020 or later | 0.0%±1.0 pts | 2.3% | – |
| Built 1939 or earlier | 29.0%±4.7 pts | 15.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Marshall County building?
Builders took permits for 11 new housing units across Marshall County in 2025 (11 single-family), 2.5 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marshall County get to work?
80.5% of Marshall County's workers drive alone and 4.9% work from home. The average trip to work takes 16.0 minutes.
| Measure | Marshall County | South Dakota | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.8%±4.1 pts | 67.2% | – |
| Unemployment rate | 0.3%±0.4 pts | 2.9% | – |
| Drove alone to work | 80.5%±4.8 pts | 77.0% | – |
| Carpooled | 8.3%±3.2 pts | 8.3% | – |
| Public transportation | 0.0%±1.2 pts | 0.5% | – |
| Walked | 4.8%±2.6 pts | 3.1% | – |
| Worked from home | 4.9%±2.3 pts | 9.7% | −5.1 pts |
| Mean travel time to work | 16.0 min±1.8 | 17.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Marshall County's census tracts?
Marshall County is a single census tract.
| Tract 950846091950800 | 4,344 | $78,156 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Marshall County compare with South Dakota's other counties?
| Measure | Rank |
|---|---|
| Population | 37th of 66 |
| Growth 2020-2025 | 20th of 66 |
| Residents per square mile | 35th of 66 |
| Median household income | 15th of 66 |
| Median home value | 41st of 66 |
| Median gross rent | 36th of 65 |
| Poverty rate | 62nd of 65 |
| Bachelor's degree or higher | 32nd of 66 |
| Median age | 23rd of 66 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Marshall County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.