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County ZIP codes · South Dakota · FIPS 46135

Yankton County, SD ZIP Codes

Yankton County, South Dakota has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Yankton County and 3 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $61,522 in 57070 (Viborg) to $76,042 in 57045 (Menno) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Yankton County?

57031 · Gayville: $65k57037 · Irene: $72k57040 · Lesterville: $72k57045 · Menno: $76k57046 · Mission Hill: $89k57063 · Tabor: $93k57067 · Utica: $103k57070 · Viborg: $62k57072 · Volin: $92k57078 · Yankton: $71k5704557078570725703757046570635707057067570405703157031 · Gayville: $65k57037 · Irene: $72k57040 · Lesterville: $72k57045 · Menno: $76k57046 · Mission Hill: $89k57063 · Tabor: $93k57067 · Utica: $103k57070 · Viborg: $62k57072 · Volin: $92k57078 · Yankton: $71k5704557078570725703757046570635707057067570405703157031 · Gayville: $65k57037 · Irene: $72k57040 · Lesterville: $72k57045 · Menno: $76k57046 · Mission Hill: $89k57063 · Tabor: $93k57067 · Utica: $103k57070 · Viborg: $62k57072 · Volin: $92k57078 · Yankton: $71k57045570785707257037570465706357070570675704057031
The residential ZIP codes of Yankton 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 10 postal town names.

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

All 10 residential ZIP codes in Yankton County

7 ZIP codes lie mainly in Yankton County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Yankton County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57078 Yankton 20,383 183 $71k $234k 100%
57037 Irene 925 9 $72k $161k 82%
57031 Gayville 784 20 $65k $137k 77%
57046 Mission Hill 521 10 $89k $228k 100%
57072 Volin 435 6 $92k $170k 72%
57067 Utica 348 6 $103k $327k 100%
57040 Lesterville 222 3 $72k $151k 97%

Partly in Yankton County

Residential ZIP codes mainly in another county that reach at least 1% into Yankton County, by their share here
In this county
57045 Menno 1,151 10 $76k $118k 28%
57063 Tabor 882 10 $93k $205k 22%
57070 Viborg 1,469 17 $62k $216k 12%

Download the 10 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 Yankton County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Yankton County and in the neighboring counties
ZIPIn YanktonElsewhere
5707012%Turner County 88%
5704528%Hutchinson County 69%; Turner County 2%
5703782%Turner County 11%; Clay County 7%
5706322%Bon Homme County 78%
5703177%Clay County 23%
5707272%Clay County 28%
5704097%Bon Homme County 3%

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

Which first three digits do Yankton 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 Yankton County starts with 570.

Three-digit prefixes of Yankton 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 Yankton County's
PrefixSectional centerHereAll codes
570 Sioux Falls, SD (SCF 570) 10 69

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