• county
  • FIPS 46091
  • Largest town: Britton

Marshall County, South Dakota

Marshall County had 4,395 residents in the Census Vintage 2024 estimate, on 838.1 square miles of land. It ranks 37th of 66 in South Dakota by population and 36th by land area.

Population
4,395
#37 of 66 in South Dakota · #2,861 in US
Area
838.1 sq mi
#36 of 66 in South Dakota · #998 in US
Density
5.2 / sq mi
#35 of 66 in South Dakota · #2,762 in US
Median household income
$69,480
#23 of 66 in South Dakota · #1,040 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Marshall County within South Dakota. Pin: Pierre.

Measure from here

Tools and pages that start from Marshall County

Marshall County population, land area and income

Marshall County had 4,395 residents in the Census Vintage 2024 estimate, on 838.1 square miles of land. It ranks 37th of 66 in South Dakota by population and 36th by land area. That works out to 5.2 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in South Dakota has 5,296 residents; Marshall County is somewhat smaller.

Its SAIPE 2023 median household income of $69,480 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

4,395

3144th1st

2861st of 3,144 (US)

Land area

838 sq mi

3144th1st

998th of 3,144 (US)

Density

5.2 / sq mi

3144th1st

2762nd of 3,144 (US)

Median household income

$69,480

3143rd1st

1040th of 3,143 (US)

Rank within South Dakota (66)

Population

4,395

66th1st

37th of 66 (SD)

Land area

838 sq mi

66th1st

36th of 66 (SD)

Density

5.2 / sq mi

66th1st

35th of 66 (SD)

Median household income

$69,480

66th1st

23rd of 66 (SD)

How Marshall County's population changed since 2020

Marshall County gained 97 residents between the July 2020 and July 2024 estimates, a rise of 2.3%. That ranks 19th of 66 in South Dakota for growth. The median South Dakota county changed by +0.8%, and the state as a whole by +4.1%.

Since the April 2020 estimates base, Marshall County recorded 262 births and 233 deaths, a natural change of +29. Net international migration added +25 and net domestic migration, people moving to or from other US counties, came to +43. The largest single component was domestic migration, which added 43 people.

4,29820204,31420214,35420224,35820234,3952024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
262
Deaths
233
Net international migration
+25
Net domestic migration
+43
Change, July 2023 to July 2024
+37

Where Marshall County is

The Census internal point of Marshall County is at 45.737000, -97.580900. It sits in UTM zone 14N. The map shades South Dakota's 66 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Marshall County outlined. Dots are towns of 1,000+ people with residents in it.

Davison County: -0.2%Minnehaha County: +5.5%Bennett County: -3.0%Clark County: +3.2%Hamlin County: +7.1%Jerauld County: +2.8%Brule County: +0.2%Aurora County: +0.4%Turner County: +4.6%Beadle County: +1.5%Hand County: -1.6%Kingsbury County: +1.0%McCook County: +1.7%Miner County: -0.0%Lyman County: +0.5%Codington County: +3.3%Deuel County: +0.8%Sully County: +1.1%Oglala Lakota County: -2.1%Edmunds County: +0.8%Sanborn County: +2.7%Spink County: -3.7%Lake County: -0.1%Hyde County: -3.0%Potter County: -2.9%Perkins County: -0.6%Faulk County: +0.5%Day County: -0.5%Clay County: +1.6%Hanson County: +0.5%Fall River County: +5.5%Brookings County: +5.9%Yankton County: +1.0%Hutchinson County: -0.1%Butte County: +5.8%Custer County: +11.8%Lawrence County: +11.5%Hughes County: -1.2%Grant County: +1.0%Brown County: -1.9%Gregory County: +2.8%Campbell County: -2.8%Bon Homme County: +1.4%McPherson County: -4.0%Lincoln County: +14.6%Stanley County: +1.5%Walworth County: -0.5%Harding County: +1.3%Marshall County: +2.3%Union County: +3.2%Pennington County: +5.8%Buffalo County: -5.8%Moody County: +3.0%Tripp County: +2.0%Roberts County: +0.2%Charles Mix County: -0.3%Meade County: +3.4%Haakon County: -1.8%Jones County: -5.3%Douglas County: +0.5%Dewey County: +1.9%Corson County: -3.6%Mellette County: -4.6%Todd County: -1.6%Jackson County: -2.4%Ziebach County: +1.0%
Change 2020 to 2024
  1. < -1.8%
  2. < +0.2%
  3. < +1.3%
  4. < +3.2%
  5. ≥ +3.2%
no data

Orange pin: Marshall County internal point. Dark pin: Pierre.

Internal point

Decimal
45.737000, -97.580900
DMS
45°44'13.20"N 97°34'51.24"W
UTM
14N 610403.4E 5065806.3N
Geohash
cb4s5qpv2
Plus code
86Q4PCP9+RJ

Towns in Marshall County

One incorporated place of 1,000+ people has residents in Marshall County, 1,199 people together, or 27% of the county. Each figure counts only the part of the town inside Marshall County; towns marked "part" extend into another county. The largest is Britton with 1,199.

  1. 01Britton1,199
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Marshall County

The Census 2024 county adjacency file lists 5 neighbors for Marshall County, including 2 across a state line. The most populous is Brown County, SD, with 37,495 residents. Distances run between Census internal points in a straight line.

Distance to Pierre and the nearest big city

Pierre is 164.8 miles SW of Marshall County's internal point in a straight line. The nearest place of 100,000 or more is Fargo, ND (population 136,285), 85.8 miles away. The nearest place of 10,000 or more is Aberdeen, SD (population 27,919), 46.9 miles away.

Marshall County FIPS code

The FIPS code of Marshall County is 46091: state code 46 for South Dakota plus county code 091. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $69,480.

Questions people ask

What is the population of Marshall County, South Dakota?

The Census Vintage 2024 estimate for July 1, 2024 is 4,395. That is up 97 people (2.3%) from the July 2020 estimate of 4,298.

What is the FIPS code of Marshall County?

46091. The first two digits (46) are South Dakota; the last three (091) identify the county.

What is the largest town in Marshall County?

Britton, with 1,199 residents inside Marshall County in 2024.

Which counties border Marshall County?

5 county-equivalents border it in the Census 2024 adjacency file: Brown County, SD; Richland County, ND; Roberts County, SD; Day County, SD; Sargent County, ND.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.