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County ZIP codes · South Dakota · FIPS 46037

Day County, SD ZIP Codes

Day County, South Dakota has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Day County and 4 mainly in a neighboring county; 7 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Day County?

57219 · Bristol: $52k57235 · Florence: $84k57239 · Grenville: $106k57256 · Ortley: $67k57261 · Roslyn: $78k57273 · Waubay: $48k57274 · Webster: $68k57422 · Andover: $88k57434 · Conde: $73k57454 · Langford: $81k57468 · Pierpont: $76k572745743457273572195723557454574225746857261572565723957219 · Bristol: $52k57235 · Florence: $84k57239 · Grenville: $106k57256 · Ortley: $67k57261 · Roslyn: $78k57273 · Waubay: $48k57274 · Webster: $68k57422 · Andover: $88k57434 · Conde: $73k57454 · Langford: $81k57468 · Pierpont: $76k572745743457273572195723557454574225746857261572565723957219 · Bristol: $52k57235 · Florence: $84k57239 · Grenville: $106k57256 · Ortley: $67k57261 · Roslyn: $78k57273 · Waubay: $48k57274 · Webster: $68k57422 · Andover: $88k57434 · Conde: $73k57454 · Langford: $81k57468 · Pierpont: $76k57274574345727357219572355745457422574685726157239
The residential ZIP codes of Day 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).

All 11 residential ZIP codes in Day County

7 ZIP codes lie mainly in Day County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Day County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57274 Webster 2,621 7 $68k $173k 93%
57273 Waubay 1,165 7 $48k $177k 75%
57219 Bristol 552 3 $52k $96k 100%
57239 Grenville 358 8 $106k $377k 100%
57468 Pierpont 279 4 $76k $113k 100%
57261 Roslyn 277 4 $78k $168k 100%
57422 Andover 174 2 $88k – 96%

Partly in Day County

Residential ZIP codes mainly in another county that reach at least 1% into Day County, by their share here
In this county
57454 Langford 732 5 $81k $155k 30%
57256 Ortley 238 5 $67k $225k 13%
57434 Conde 506 2 $73k – 9%
57235 Florence 774 6 $84k $231k 5%

Download the 11 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?

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

Share of each ZIP code's land in Day County and in the neighboring counties
ZIPIn DayElsewhere
5727493%Clark County7%
5727375%Roberts County25%
572355%Codington County95%
5745430%Marshall County70%
574349%Spink County56%; Clark County18%; Brown County17%
5725613%Grant County62%; Roberts County20%; Codington County5%
5742296%Brown County4%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Day County's ZIP codes use 2 prefixes: 572 and 574.

Three-digit prefixes of Day 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 Day County's
PrefixSectional centerHereAll codes
572Dakota Central, SD (SCF 572)756
574Dakota Central, SD (SCF 572)450

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