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/MOUND-CITY

Mound City ZIP code, South Dakota

The ZIP code for Mound City, SD is 57646, and its area code is 605.

USPS city name
1 ZIP code
Population
90
Area code
605

ZIP codes addressed as Mound City

ZIP codes with the USPS city name Mound City
ZIP City Type Population Median income Median home
57646 Mound City , SD Standard 272 $101,406 $113,300

Map of Mound City ZIP codes

57646

The ZIP codes of Mound City, 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 Mound City

The nearest larger towns are Herreid (560 people, 7.7 mi), Selby (702 people, 15 mi) and Pollock (270 people, 16 mi).

Towns near Mound City
TownPopulationDistance
Mobridge 2,932 21.8 mi

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

Cite this page

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

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