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/CLARK

Clark ZIP code, South Dakota

The ZIP code for Clark, SD is 57225, and its area code is 605.

USPS city name
1 ZIP code
Population
1,359
Area code
605

Clark in numbers

About 1,359 people live in Clark, in 528 households. The median household income is $58,750 a year, 22% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $122,800 (52% below the South Dakota median), and median gross rent is $775 a month. The median age is 48.2; 13.8% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 18 minutes.

Population1,359Clark1,359
Households528Clark528
Median age48.2Clark48.2South Dakota38.0US 38.9
Median household income$58,750Clark$58,750South Dakota$75,081US $80,734
Median home value$122,800Clark$122,800South Dakota$257,400US $332,700
Median gross rent$775Clark$775South Dakota$946US $1,413
Bachelor's degree or higher13.8%Clark13.8%South Dakota31.9%US 35.7%
Mean commute18.2 minClark18.2 minSouth Dakota17.8 minUS 26.4 min
Population density1,004 / sq miClark1,004 / sq mi

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

ZIP codes addressed as Clark

ZIP codes with the USPS city name Clark
ZIP City Type Population Median income Median home
57225 Clark , SD Standard 1,833 $66,875 $155,100

Map of Clark ZIP codes

The ZIP codes of Clark, 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 Clark

The nearest larger towns are Watertown (23,044 people, 28 mi), Webster (1,896 people, 33 mi) and Redfield (1,989 people, 38 mi).

Towns near Clark
TownPopulationDistance
Watertown 23,044 28.4 mi

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

Cite this page

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

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