Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/SD/YANKTON

Yankton ZIP code, South Dakota

The ZIP code for Yankton, SD is 57078, and its area code is 605.

USPS city name
1 ZIP code
Population
15,540
Area code
605

Yankton in numbers

About 15,540 people live in Yankton, in 6,638 households, the 7th-largest of South Dakota's 439 census places. The median household income is $67,804 a year, 10% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $222,700 (13% below the South Dakota median), and median gross rent is $790 a month. The median age is 41.4; 33.2% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 13 minutes.

Population15,540Yankton15,540
Households6,638Yankton6,638
Median age41.4Yankton41.4South Dakota38.0US 38.9
Median household income$67,804Yankton$67,804South Dakota$75,081US $80,734
Median home value$222,700Yankton$222,700South Dakota$257,400US $332,700
Median gross rent$790Yankton$790South Dakota$946US $1,413
Bachelor's degree or higher33.2%Yankton33.2%South Dakota31.9%US 35.7%
Mean commute13.3 minYankton13.3 minSouth Dakota17.8 minUS 26.4 min
Population density1,778 / sq miYankton1,778 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Yankton city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Yankton

ZIP codes with the USPS city name Yankton
ZIP City Type Population Median income Median home
57078 Yankton , SD Standard 20,383 $71,268 $233,900

Map of Yankton ZIP codes

57078

The ZIP codes of Yankton, SD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Yankton

The nearest larger towns are Sioux Falls (201,469 people, 56 mi), Sioux City, IA (86,101 people, 58 mi) and Norfolk, NE (26,054 people, 60 mi).

Towns near Yankton
TownPopulationDistance
Vermillion 11,878 24.8 mi

More nearby: every ZIP code in Yankton County · South Dakota ZIP codes

Cite this page

zipcodes.pro. “Yankton, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/yankton

Underlying data is public domain or openly licensed — sources, vintages and licences.