• county
  • FIPS 46135
  • Largest town: Yankton

Yankton County, South Dakota

Yankton County had 23,509 residents in the Census Vintage 2024 estimate, on 521.2 square miles of land. It ranks 9th of 66 in South Dakota by population and 58th by land area.

Population
23,509
#9 of 66 in South Dakota · #1,664 in US
Area
521.2 sq mi
#58 of 66 in South Dakota · #2,003 in US
Density
45 / sq mi
#5 of 66 in South Dakota · #1,570 in US
Median household income
$73,061
#16 of 66 in South Dakota · #788 in US

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

Yankton County within South Dakota. Pin: Pierre.

Measure from here

Tools and pages that start from Yankton County

Yankton County population, land area and income

Yankton County had 23,509 residents in the Census Vintage 2024 estimate, on 521.2 square miles of land. It ranks 9th of 66 in South Dakota by population and 58th by land area. That works out to 45.1 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in South Dakota has 5,296 residents, so Yankton County is 4.4 times that size.

Its SAIPE 2023 median household income of $73,061 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

23,509

3144th1st

1664th of 3,144 (US)

Land area

521 sq mi

3144th1st

2003rd of 3,144 (US)

Density

45.1 / sq mi

3144th1st

1570th of 3,144 (US)

Median household income

$73,061

3143rd1st

788th of 3,143 (US)

Rank within South Dakota (66)

Population

23,509

66th1st

9th of 66 (SD)

Land area

521 sq mi

66th1st

58th of 66 (SD)

Density

45.1 / sq mi

66th1st

5th of 66 (SD)

Median household income

$73,061

66th1st

16th of 66 (SD)

How Yankton County's population changed since 2020

Yankton County gained 223 residents between the July 2020 and July 2024 estimates, a rise of 1.0%. That ranks 32nd 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, Yankton County recorded 1,049 births and 1,065 deaths, a natural change of -16. Net international migration added +83 and net domestic migration, people moving to or from other US counties, came to +135. The largest single component was domestic migration, which added 135 people.

23.3k202023.4k202123.4k202223.5k202323.5k2024
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
1,049
Deaths
1,065
Net international migration
+83
Net domestic migration
+135
Change, July 2023 to July 2024
+0

Where Yankton County is

The Census internal point of Yankton County is at 43.006600, -97.388400. 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 Yankton 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: Yankton County internal point. Dark pin: Pierre.

Internal point

Decimal
43.006600, -97.388400
DMS
43°00'23.76"N 97°23'18.24"W
UTM
14N 631346.0E 4762807.9N
Geohash
9zdsxv5gt
Plus code
86M42J46+JJ

Towns in Yankton County

One incorporated place of 1,000+ people has residents in Yankton County, 15,670 people together, or 67% of the county. Each figure counts only the part of the town inside Yankton County; towns marked "part" extend into another county. The largest is Yankton with 15,670.

  1. 01Yankton15,670
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Yankton County

The Census 2024 county adjacency file lists 6 neighbors for Yankton County, including 2 across a state line. The most populous is Clay County, SD, with 15,245 residents. Distances run between Census internal points in a straight line.

Distance to Pierre and the nearest big city

Pierre is 175.1 miles WNW of Yankton County's internal point in a straight line. The nearest place of 100,000 or more is Sioux Falls, SD (population 209,289), 49.5 miles away. The nearest place of 10,000 or more is Yankton, SD (population 15,670), 8.1 miles away.

Yankton County FIPS code

The FIPS code of Yankton County is 46135: state code 46 for South Dakota plus county code 135. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $73,061.

Questions people ask

What is the population of Yankton County, South Dakota?

The Census Vintage 2024 estimate for July 1, 2024 is 23,509. That is up 223 people (1.0%) from the July 2020 estimate of 23,286.

What is the FIPS code of Yankton County?

46135. The first two digits (46) are South Dakota; the last three (135) identify the county.

What is the largest town in Yankton County?

Yankton, with 15,670 residents inside Yankton County in 2024.

Which counties border Yankton County?

6 county-equivalents border it in the Census 2024 adjacency file: Clay County, SD; Turner County, SD; Knox County, NE; Cedar County, NE; Hutchinson County, SD; Bon Homme 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.