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County ZIP codes · South Dakota · FIPS 46051

Grant County, SD ZIP Codes

Grant County, South Dakota has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 10 of the residential ones lie mainly in Grant County and 2 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $70,479 in 57252 (Milbank) to $88,203 in 57216 (Big Stone City) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Grant County?

57216 · Big Stone City: $88k57227 · Corona: $97k57246 · Labolt: $73k57251 · Marvin: $72k57252 · Milbank: $71k57256 · Ortley: $67k57259 · Revillo: $80k57263 · South Shore: $58k57264 · Stockholm: $80k57265 · Strandburg: $70k57266 · Summit: $73k57269 · Twin Brooks: $98k57252572595726357266572165726957265572275724657256572515726457216 · Big Stone City: $88k57227 · Corona: $97k57246 · Labolt: $73k57251 · Marvin: $72k57252 · Milbank: $71k57256 · Ortley: $67k57259 · Revillo: $80k57263 · South Shore: $58k57264 · Stockholm: $80k57265 · Strandburg: $70k57266 · Summit: $73k57269 · Twin Brooks: $98k57252572595726357266572165726957265572275724657256572515726457216 · Big Stone City: $88k57227 · Corona: $97k57246 · Labolt: $73k57251 · Marvin: $72k57252 · Milbank: $71k57256 · Ortley: $67k57259 · Revillo: $80k57263 · South Shore: $58k57264 · Stockholm: $80k57265 · Strandburg: $70k57266 · Summit: $73k57269 · Twin Brooks: $98k572525725957263572665721657269572655722757246572565725157264
The residential ZIP codes of Grant 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?

They carry 12 postal town names.

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

All 12 residential ZIP codes in Grant County

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

Residential ZIP codes mainly in Grant County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57252 Milbank 4,883 30 $71k $183k 96%
57216 Big Stone City 1,584 26 $88k $201k 67%
57266 Summit 626 5 $73k $163k 52%
57259 Revillo 477 4 $80k $260k 61%
57256 Ortley 238 5 $67k $225k 62%
57251 Marvin 228 5 $72k $75k 100%
57265 Strandburg 202 2 $70k $115k 60%
57264 Stockholm 191 4 $80k $113k 100%
57269 Twin Brooks 186 2 $98k $411k 100%
57246 Labolt 132 4 $73k $90k 100%

Partly in Grant County

Residential ZIP codes mainly in another county that reach at least 1% into Grant County, by their share here
In this county
57263 South Shore 351 3 $58k $113k 34%
57227 Corona 562 13 $97k $193k 7%

Download the 12 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?

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

Share of each ZIP code's land in Grant County and in the neighboring counties
ZIPIn GrantElsewhere
5725296%Roberts County 4%
5721667%Roberts County 33%
5726652%Roberts County 48%
572277%Roberts County 93%
5725961%Deuel County 39%
5726334%Codington County 66%
5725662%Roberts County 20%; Day County 13%; Codington County 5%
5726560%Deuel County 37%; Codington County 4%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Grant County starts with 572.

Three-digit prefixes of Grant 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 Grant County's
PrefixSectional centerHereAll codes
572 Dakota Central, SD (SCF 572) 12 56

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