Yankton, South Dakota

Yankton population, 2020 to 2024

Yankton added 244 residents from July 2020 to July 2024, a change of +1.6%. In the latest year it moved by +51. Among 18 South Dakota places of 5,000 or more, that growth ranks 11th; the median place changed by +2.7%. The median place of 5,000+ in South Dakota has 13,845 people, so Yankton is 1.1 times that size.

Yankton covers 8.74 square miles of land and 0.24 of water, for 1,793 people per square mile of land. The median South Dakota place of 5,000+ has 1,459, so Yankton is denser than the typical town.

What county Yankton is in

All of Yankton's residents live in Yankton County, which had 23,509 residents in 2024. Yankton holds 66.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Yankton

1 ZIP Code Tabulation Area (ZCTA) overlaps Yankton by at least 10% of the ZCTA's or the city's land: 57078. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Yankton is

The Census internal point of Yankton is at 42.889800, -97.392700. Pierre, the capital, is 179.5 miles NW in a straight line. The nearest larger place is Sioux Falls, SD (209,289 people), 55.9 miles away.

Daylight in Yankton

At 42.89° N, Yankton gets about 15 h 21 min of daylight around the June solstice and 9 h 01 min around the December solstice, a swing of 6 h 20 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Yankton

The eight nearest incorporated places of 1,000+ in South Dakota, measured between internal points. The closest is Vermillion, 24.8 miles away, with 11,877 people.