Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/SD/COUNTY/LYMAN

Lyman County, SD ZIP codes

Lyman County, SD has 6 ZIP codes, in 6 towns: 57548, 57568, 57365, 57544, 57569 and 57576. 2 more cross into it from neighbouring counties: 57532 and 57533.

The county seat is Kennebec.

ZIP codes
6
Partly in it
2 more
Towns
6
County seat
Kennebec
County FIPS
46085
Population
3,724
Median household income
$67,143
Land area
1,642 sq mi

Lyman County ZIP codes by town

Kennebec (county seat)
57544

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 Lyman County

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

Map of Lyman County ZIP codes

573655754457548575685756957576

The ZIP codes of Lyman 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.

Lyman County in numbers

About 3,724 people live in Lyman County, in 1,188 households, the 43rd most populous of South Dakota's 66 counties. The median household income is $67,143 a year, 11% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $165,800 (36% below the South Dakota median), and median gross rent is $651 a month. The median age is 36.1; 24.5% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 16 minutes.

Population3,724Lyman3,724
Households1,188Lyman1,188
Median age36.1Lyman36.1South Dakota38.0US 38.9
Median household income$67,143Lyman$67,143South Dakota$75,081US $80,734
Median home value$165,800Lyman$165,800South Dakota$257,400US $332,700
Median gross rent$651Lyman$651South Dakota$946US $1,413
Bachelor's degree or higher24.5%Lyman24.5%South Dakota31.9%US 35.7%
Mean commute15.8 minLyman15.8 minSouth Dakota17.8 minUS 26.4 min
Population density2 / sq miLyman2 / 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 Lyman County

Largest towns in Lyman County
TownZIP codesPopulation
Lower Brule 1 743
Oacoma 1 548
Presho 1 313
Kennebec 1 296
Reliance 1 211
Vivian 1 50

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 Lyman County.

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

Every ZIP code in Lyman County, with figures

ZIP codes in Lyman County
ZIP City Type Population Median income Median home
57365 Oacoma , SD Standard 599 $76,000 $218,400
57544 Kennebec , SD Standard 421 $78,750 $141,700
57548 Lower Brule , SD Standard 1,442 $35,750 $33,900
57568 Presho , SD Standard 540 $83,188 $174,800
57569 Reliance , SD Standard 497 $74,722 $124,200
57576 Vivian , SD Standard 205 $100,208 $219,600

Cite this page

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

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