• county
  • FIPS 46037
  • Largest town: Webster

Day County, South Dakota

Day County had 5,408 residents in the Census Vintage 2024 estimate, on 1,028.5 square miles of land. It ranks 32nd of 66 in South Dakota by population and 28th by land area.

Population
5,408
#32 of 66 in South Dakota · #2,788 in US
Area
1,028.5 sq mi
#28 of 66 in South Dakota · #644 in US
Density
5.3 / sq mi
#34 of 66 in South Dakota · #2,761 in US
Median household income
$60,503
#46 of 66 in South Dakota · #1,792 in US

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

Day County within South Dakota. Pin: Pierre.

Measure from here

Tools and pages that start from Day County

Day County population, land area and income

Day County had 5,408 residents in the Census Vintage 2024 estimate, on 1,028.5 square miles of land. It ranks 32nd of 66 in South Dakota by population and 28th by land area. That works out to 5.3 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, about the same as Day County.

Its SAIPE 2023 median household income of $60,503 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

5,408

3144th1st

2788th of 3,144 (US)

Land area

1,028 sq mi

3144th1st

644th of 3,144 (US)

Density

5.3 / sq mi

3144th1st

2761st of 3,144 (US)

Median household income

$60,503

3143rd1st

1792nd of 3,143 (US)

Rank within South Dakota (66)

Population

5,408

66th1st

32nd of 66 (SD)

Land area

1,028 sq mi

66th1st

28th of 66 (SD)

Density

5.3 / sq mi

66th1st

34th of 66 (SD)

Median household income

$60,503

66th1st

46th of 66 (SD)

How Day County's population changed since 2020

Day County lost 28 residents between the July 2020 and July 2024 estimates, a drop of 0.5%. That ranks 48th 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, Day County recorded 208 births and 378 deaths, a natural change of -170. Net international migration added +27 and net domestic migration, people moving to or from other US counties, came to +108. The largest single component was natural change, which removed 170 people.

5,43620205,41820215,47820225,44520235,4082024
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
208
Deaths
378
Net international migration
+27
Net domestic migration
+108
Change, July 2023 to July 2024
-37

Where Day County is

The Census internal point of Day County is at 45.355200, -97.581400. 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 Day 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: Day County internal point. Dark pin: Pierre.

Internal point

Decimal
45.355200, -97.581400
DMS
45°21'18.72"N 97°34'53.04"W
UTM
14N 611114.3E 5023388.6N
Geohash
cb4d52xmh
Plus code
86Q49C49+3C

Towns in Day County

One incorporated place of 1,000+ people has residents in Day County, 1,666 people together, or 31% of the county. Each figure counts only the part of the town inside Day County; towns marked "part" extend into another county. The largest is Webster with 1,666.

  1. 01Webster1,666
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Day County

The Census 2024 county adjacency file lists 7 neighbors for Day County. 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 151.6 miles WSW of Day County's internal point in a straight line. The nearest place of 100,000 or more is Fargo, ND (population 136,285), 110.4 miles away. The nearest place of 10,000 or more is Watertown, SD (population 23,492), 37.2 miles away.

Day County FIPS code

The FIPS code of Day County is 46037: state code 46 for South Dakota plus county code 037. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $60,503.

Questions people ask

What is the population of Day County, South Dakota?

The Census Vintage 2024 estimate for July 1, 2024 is 5,408. That is down 28 people (0.5%) from the July 2020 estimate of 5,436.

What is the FIPS code of Day County?

46037. The first two digits (46) are South Dakota; the last three (037) identify the county.

What is the largest town in Day County?

Webster, with 1,666 residents inside Day County in 2024.

Which counties border Day County?

7 county-equivalents border it in the Census 2024 adjacency file: Brown County, SD; Codington County, SD; Roberts County, SD; Grant County, SD; Spink County, SD; Marshall County, SD; Clark County, SD.

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.