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County ZIP codes · South Dakota · FIPS 46077

Kingsbury County, SD ZIP Codes

Kingsbury County, South Dakota has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Kingsbury County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $63,182 in 57249 (Lake Preston) to $96,364 in 57248 (Lake Norden) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Kingsbury County?

57051 · Oldham: $56k57212 · Arlington: $94k57214 · Badger: $65k57231 · De Smet: $79k57233 · Erwin: $83k57248 · Lake Norden: $96k57249 · Lake Preston: $63k57323 · Carthage: $51k57353 · Iroquois: $76k57353572125723157249573235705157248572335721457051 · Oldham: $56k57212 · Arlington: $94k57214 · Badger: $65k57231 · De Smet: $79k57233 · Erwin: $83k57248 · Lake Norden: $96k57249 · Lake Preston: $63k57323 · Carthage: $51k57353 · Iroquois: $76k573535721257231572495732357051572485723357051 · Oldham: $56k57212 · Arlington: $94k57214 · Badger: $65k57231 · De Smet: $79k57233 · Erwin: $83k57248 · Lake Norden: $96k57249 · Lake Preston: $63k57323 · Carthage: $51k57353 · Iroquois: $76k5735357212572315724957323570515724857233
The residential ZIP codes of Kingsbury County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $63,182 and $93,750.

They carry 9 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 9 residential ZIP codes in Kingsbury County

7 ZIP codes lie mainly in Kingsbury County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Kingsbury County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57212 Arlington 1,819 8 $94k $238k 56%
57231 De Smet 1,724 7 $79k $212k 100%
57249 Lake Preston 1,023 7 $63k $193k 100%
57353 Iroquois 812 3 $76k $139k 56%
57233 Erwin 350 10 $83k – 100%
57051 Oldham 163 2 $56k $113k 78%
57214 Badger 162 29 $65k $70k 100%

Partly in Kingsbury County

Residential ZIP codes mainly in another county that reach at least 1% into Kingsbury County, by their share here
In this county
57323 Carthage 126 1 $51k $70k 23%
57248 Lake Norden 1,295 19 $96k $293k 19%

Download the 9 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Kingsbury County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Kingsbury County and in the neighboring counties
ZIPIn KingsburyElsewhere
5721256%Brookings County 43%
5724819%Hamlin County 81%
5735356%Beadle County 41%; Clark County 3%
5705178%Miner County 18%; Lake County 5%
5732323%Miner County 74%; Sanborn County 3%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Kingsbury County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Kingsbury County's ZIP codes use 3 prefixes: 570, 572 and 573.

Three-digit prefixes of Kingsbury County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Kingsbury County's
PrefixSectional centerHereAll codes
570 Sioux Falls, SD (SCF 570) 1 69
572 Dakota Central, SD (SCF 572) 6 56
573 Dakota Central, SD (SCF 572) 2 62

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.