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County ZIP codes · South Dakota · FIPS 46011

Brookings County, SD ZIP Codes

Brookings County, South Dakota has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Brookings County and 5 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $66,337 in 57006 (Brookings) to $93,750 in 57212 (Arlington) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Brookings County?

56136 · Hendricks: $68k57002 · Aurora: $93k57006 · Brookings: $66k57007 · Brookings: –57026 · Elkton: $81k57061 · Sinai: $57k57071 · Volga: $77k57212 · Arlington: $94k57213 · Astoria: $82k57220 · Bruce: $86k57234 · Estelline: $82k57268 · Toronto: $76k57276 · White: $68k572125702657006572765613657234570715722057002572685721356136 · Hendricks: $68k57002 · Aurora: $93k57006 · Brookings: $66k57007 · Brookings: –57026 · Elkton: $81k57061 · Sinai: $57k57071 · Volga: $77k57212 · Arlington: $94k57213 · Astoria: $82k57220 · Bruce: $86k57234 · Estelline: $82k57268 · Toronto: $76k57276 · White: $68k572125702657006572765613657234570715722057002572685721356136 · Hendricks: $68k57002 · Aurora: $93k57006 · Brookings: $66k57007 · Brookings: –57026 · Elkton: $81k57061 · Sinai: $57k57071 · Volga: $77k57212 · Arlington: $94k57213 · Astoria: $82k57220 · Bruce: $86k57234 · Estelline: $82k57268 · Toronto: $76k57276 · White: $68k5721257026570065727656136572345707157220570025726857213
The residential ZIP codes of Brookings 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 $68,281 and $82,358.

They carry 12 postal town names.

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

All 13 residential ZIP codes in Brookings County

8 ZIP codes lie mainly in Brookings County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Brookings County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57006 Brookings 24,192 159 $66k $274k 89%
57071 Volga 3,149 26 $77k $246k 92%
57007 Brookings 2,377 7,160 – – 100%
57002 Aurora 1,674 26 $93k $244k 92%
57026 Elkton 1,531 9 $81k $213k 57%
57276 White 942 8 $68k $161k 100%
57220 Bruce 665 6 $86k $217k 100%
57061 Sinai 215 584 $57k $89k 100%

Partly in Brookings County

Residential ZIP codes mainly in another county that reach at least 1% into Brookings County, by their share here
In this county
57212 Arlington 1,819 8 $94k $238k 43%
57213 Astoria 505 11 $82k $208k 25%
57268 Toronto 435 7 $76k $236k 22%
56136 Hendricks 1,203 11 $68k $226k 21%
57234 Estelline 1,339 13 $82k $173k 6%

Download the 13 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?

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

Share of each ZIP code's land in Brookings County and in the neighboring counties
ZIPIn BrookingsElsewhere
5700689%Moody County 11%
5707192%Lake County 6%; Moody County 2%
5721243%Kingsbury County 56%
5700292%Moody County 8%
5702657%Moody County 20%; Lincoln County 14%; Pipestone County 10%
572346%Deuel County 50%; Hamlin County 43%
5613621%Lincoln County 79%
5721325%Deuel County 75%
5726822%Deuel County 78%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Brookings County's ZIP codes use 3 prefixes: 561, 570 and 572.

Three-digit prefixes of Brookings 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 Brookings County's
PrefixSectional centerHereAll codes
561 Mankato, MN (SCF 560) 1 66
570 Sioux Falls, SD (SCF 570) 6 69
572 Dakota Central, SD (SCF 572) 6 56

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