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/JACKSON

Jackson County, SD ZIP codes

Jackson County, SD has 4 ZIP codes, in 4 towns: 57543, 57577, 57750 and 57547. 2 more cross into it from neighbouring counties: 57567 and 57521.

The county seat is Kadoka.

ZIP codes
4
Partly in it
2 more
Towns
4
County seat
Kadoka
County FIPS
46071
Population
2,802
Median household income
$35,417
Land area
1,864 sq mi

Jackson County ZIP codes by town

Kadoka (county seat)
57543

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 Jackson County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Jackson County.

Map of Jackson County ZIP codes

The ZIP codes of Jackson 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.

Jackson County in numbers

About 2,802 people live in Jackson County, in 830 households, the 50th most populous of South Dakota's 66 counties. The median household income is $35,417 a year, 53% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $117,300 (54% below the South Dakota median), and median gross rent is $442 a month. The median age is 34.3; 12.4% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 11 minutes.

Population2,802Jackson2,802
Households830Jackson830
Median age34.3Jackson34.3South Dakota38.0US 38.9
Median household income$35,417Jackson$35,417South Dakota$75,081US $80,734
Median home value$117,300Jackson$117,300South Dakota$257,400US $332,700
Median gross rent$442Jackson$442South Dakota$946US $1,413
Bachelor's degree or higher12.4%Jackson12.4%South Dakota31.9%US 35.7%
Mean commute11.4 minJackson11.4 minSouth Dakota17.8 minUS 26.4 min
Population density2 / sq miJackson2 / 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.

Largest towns in Jackson County

Largest towns in Jackson County
TownZIP codesPopulation
Wanblee 1 534
Long Valley 1 383
Kadoka 1 372
Interior 1 77

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Jackson County.

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

Every ZIP code in Jackson County, with figures

ZIP codes in Jackson County
ZIP City Type Population Median income Median home
57543 Kadoka , SD Standard 721 $36,250 $160,400
57547 Long Valley , SD Standard 383 $78,523 $115,700
57577 Wanblee , SD Standard 940 $20,625 —
57750 Interior , SD Standard 365 — $175,000

Cite this page

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

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