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/AURORA

Aurora County, SD ZIP codes

Aurora County, SD has 3 ZIP codes, in 3 towns: 57368, 57383 and 57375. 1 more crosses into it from a neighbouring county: 57382.

The county seat is Plankinton.

ZIP codes
3
Partly in it
1 more
Towns
3
County seat
Plankinton
County FIPS
46003
Population
2,642
Median household income
$72,885
Land area
708 sq mi

Aurora County ZIP codes by town

Plankinton (county seat)
57368

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 Aurora County

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

Map of Aurora County ZIP codes

573685737557383

The ZIP codes of Aurora 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.

Aurora County in numbers

About 2,642 people live in Aurora County, in 1,064 households, the 51st most populous of South Dakota's 66 counties. The median household income is $72,885 a year, about the same as the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $151,900 (41% below the South Dakota median), and median gross rent is $747 a month. The median age is 41.7; 21.4% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 21 minutes.

Population2,642Aurora2,642
Households1,064Aurora1,064
Median age41.7Aurora41.7South Dakota38.0US 38.9
Median household income$72,885Aurora$72,885South Dakota$75,081US $80,734
Median home value$151,900Aurora$151,900South Dakota$257,400US $332,700
Median gross rent$747Aurora$747South Dakota$946US $1,413
Bachelor's degree or higher21.4%Aurora21.4%South Dakota31.9%US 35.7%
Mean commute21.0 minAurora21.0 minSouth Dakota17.8 minUS 26.4 min
Population density4 / sq miAurora4 / 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 Aurora County

Largest towns in Aurora County
TownZIP codesPopulation
Plankinton 1 603
White Lake 1 469
Stickney 1 284

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 Aurora County.

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

Every ZIP code in Aurora County, with figures

ZIP codes in Aurora County
ZIP City Type Population Median income Median home
57368 Plankinton , SD Standard 1,068 $74,688 $202,700
57375 Stickney , SD Standard 573 $70,250 $151,300
57383 White Lake , SD Standard 899 $62,917 $108,900

Cite this page

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

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