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zipcodes.pro — STATE/SD/COUNTY/CHARLES-MIX

Charles Mix County, SD ZIP codes

There are 7 ZIP codes in Charles Mix County, SD, in 7 towns, from 57329 to 57380. The largest are 57380 (Wagner), 57369 (Platte) and 57356 (Lake Andes). 1 more crosses into it from a neighbouring county: 57313.

The county seat is Lake Andes.

ZIP codes
7
Partly in it
1 more
Towns
7
County seat
Lake Andes
County FIPS
46023
Population
9,281
Median household income
$64,038
Land area
1,097 sq mi

Charles Mix County ZIP codes by town

Lake Andes (county seat)
57356

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 Charles Mix County

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

Map of Charles Mix County ZIP codes

57329573425735657361573675736957380

The ZIP codes of Charles Mix 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.

Charles Mix County in numbers

About 9,281 people live in Charles Mix County, in 3,032 households, the 19th most populous of South Dakota's 66 counties. The median household income is $64,038 a year, 15% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $170,600 (34% below the South Dakota median), and median gross rent is $704 a month. The median age is 36.0; 25.7% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 14 minutes.

Population9,281Charles Mix9,281
Households3,032Charles Mix3,032
Median age36.0Charles Mix36.0South Dakota38.0US 38.9
Median household income$64,038Charles Mix$64,038South Dakota$75,081US $80,734
Median home value$170,600Charles Mix$170,600South Dakota$257,400US $332,700
Median gross rent$704Charles Mix$704South Dakota$946US $1,413
Bachelor's degree or higher25.7%Charles Mix25.7%South Dakota31.9%US 35.7%
Mean commute14.1 minCharles Mix14.1 minSouth Dakota17.8 minUS 26.4 min
Population density8 / sq miCharles Mix8 / 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 Charles Mix County

Largest towns in Charles Mix County
TownZIP codesPopulation
Wagner 1 1,529
Platte 1 1,161
Lake Andes 1 901
Marty 1 305
Pickstown 1 275
Geddes 1 158
Dante 1 120

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 Charles Mix County.

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

Every ZIP code in Charles Mix County, with figures

ZIP codes in Charles Mix County
ZIP City Type Population Median income Median home
57329 Dante , SD Standard 317 $62,115 $153,100
57342 Geddes , SD Standard 393 $75,313 $143,300
57356 Lake Andes , SD Standard 1,959 $54,107 $113,900
57361 Marty , SD Standard 278 $19,830 —
57367 Pickstown , SD Standard 291 $87,188 $287,500
57369 Platte , SD Standard 2,630 $78,100 $237,400
57380 Wagner , SD Standard 3,316 $62,135 $157,600

Cite this page

zipcodes.pro. “Charles Mix County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/sd/county/charles-mix

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