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 — STATE/SD/COUNTY/STANLEY

Stanley County, SD ZIP codes

Stanley County, SD has 2 ZIP codes, in 2 towns: 57532 and 57537. 1 more crosses into it from a neighbouring county: 57552.

The county seat is Fort Pierre.

ZIP codes
2
Partly in it
1 more
Towns
2
County seat
Fort Pierre
County FIPS
46117
Population
3,015
Median household income
$87,712
Land area
1,444 sq mi
Metro area
Pierre

Stanley County ZIP codes by town

Fort Pierre (county seat)
57532

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Stanley County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Stanley County.

Map of Stanley County ZIP codes

5753257537

The ZIP codes of Stanley County, 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.

Stanley County in numbers

About 3,015 people live in Stanley County, in 1,290 households, the 47th most populous of South Dakota's 66 counties. The median household income is $87,712 a year, 17% above the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $203,500 (21% below the South Dakota median), and median gross rent is $952 a month. The median age is 44.5; 28.2% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 18 minutes.

Population3,015Stanley3,015
Households1,290Stanley1,290
Median age44.5Stanley44.5South Dakota38.0US 38.9
Median household income$87,712Stanley$87,712South Dakota$75,081US $80,734
Median home value$203,500Stanley$203,500South Dakota$257,400US $332,700
Median gross rent$952Stanley$952South Dakota$946US $1,413
Bachelor's degree or higher28.2%Stanley28.2%South Dakota31.9%US 35.7%
Mean commute18.0 minStanley18.0 minSouth Dakota17.8 minUS 26.4 min
Population density2 / sq miStanley2 / sq mi

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

Neighbouring counties

Counties that share a ZIP code with Stanley County.

Not sure you are in Stanley County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Stanley County, with figures

ZIP codes in Stanley County
ZIP City Type Population Median income Median home
57532 Fort Pierre , SD Standard 2,929 $87,966 $210,000
57537 Hayes , SD Standard 0 — —

Cite this page

zipcodes.pro. “Stanley County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/sd/county/stanley

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