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County ZIP codes · South Dakota · FIPS 46119

Sully County, SD ZIP Codes

Sully County, South Dakota has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 2 of the residential ones lie mainly in Sully County and 4 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $65,625 in 57442 (Gettysburg) to $81,791 in 57501 (Pierre) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Sully County?

57442 · Gettysburg: $66k57501 · Pierre: $82k57520 · Agar: $50k57522 · Blunt: $72k57536 · Harrold: $53k57564 · Onida: $74k57501574425756457536575225752057442 · Gettysburg: $66k57501 · Pierre: $82k57520 · Agar: $50k57522 · Blunt: $72k57536 · Harrold: $53k57564 · Onida: $74k57501574425756457536575225752057442 · Gettysburg: $66k57501 · Pierre: $82k57520 · Agar: $50k57522 · Blunt: $72k57536 · Harrold: $53k57564 · Onida: $74k575015744257564575365752257520
The residential ZIP codes of Sully 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 6 postal town names: Pierre, Gettysburg, Onida, Blunt, Harrold, Agar.

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

All 6 residential ZIP codes in Sully County

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

Residential ZIP codes mainly in Sully County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57564 Onida 962 2 $74k $211k 98%
57520 Agar 118 1 $50k $119k 100%

Partly in Sully County

Residential ZIP codes mainly in another county that reach at least 1% into Sully County, by their share here
In this county
57501 Pierre 17,326 31 $82k $245k 42%
57522 Blunt 521 3 $72k $215k 31%
57536 Harrold 277 1 $53k $90k 29%
57442 Gettysburg 1,772 3 $66k $135k 2%

Download the 6 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 Sully County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Sully County and in the neighboring counties
ZIPIn SullyElsewhere
5750142%Hughes County 58%
574422%Potter County 84%; Dewey County 14%
5756498%Hyde County 2%
5752231%Hughes County 69%
5753629%Hughes County 71%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Sully County's ZIP codes use 2 prefixes: 574 and 575.

Three-digit prefixes of Sully 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 Sully County's
PrefixSectional centerHereAll codes
574 Dakota Central, SD (SCF 572) 1 50
575 Dakota Central, SD (SCF 572) 5 43

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