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County ZIP codes · South Dakota · FIPS 46035

Davison County, SD ZIP Codes

Davison County, South Dakota has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Davison County and 3 mainly in a neighboring county; 6 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Davison County?

57301 · Mitchell: $66k57331 · Dimock: $101k57334 · Ethan: $62k57359 · Letcher: $107k57363 · Mount Vernon: $78k57375 · Stickney: $70k57301573595733457363573755733157301 · Mitchell: $66k57331 · Dimock: $101k57334 · Ethan: $62k57359 · Letcher: $107k57363 · Mount Vernon: $78k57375 · Stickney: $70k57301573595733457363573755733157301 · Mitchell: $66k57331 · Dimock: $101k57334 · Ethan: $62k57359 · Letcher: $107k57363 · Mount Vernon: $78k57375 · Stickney: $70k573015735957334573635737557331
The residential ZIP codes of Davison 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 6 residential ZIP codes in Davison County

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

Residential ZIP codes mainly in Davison County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
57301 Mitchell 19,104 80 $66k $208k 77%
57334 Ethan 1,081 10 $62k $207k 52%
57363 Mount Vernon 866 5 $78k $203k 91%

Partly in Davison County

Residential ZIP codes mainly in another county that reach at least 1% into Davison County, by their share here
In this county
57331 Dimock 231 3 $101k $293k 11%
57359 Letcher 652 4 $107k $167k 9%
57375 Stickney 573 4 $70k $151k 1%

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?

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

Share of each ZIP code's land in Davison County and in the neighboring counties
ZIPIn DavisonElsewhere
5730177%Hanson County 23%
5733452%Hanson County 36%; Hutchinson County 13%
5736391%Sanborn County 6%; Aurora County 2%
573599%Sanborn County 76%; Aurora County 15%
573751%Aurora County 99%
5733111%Hutchinson County 66%; Douglas County 23%

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

Which first three digits do Davison 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 Davison County starts with 573.

Three-digit prefixes of Davison 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 Davison County's
PrefixSectional centerHereAll codes
573 Dakota Central, SD (SCF 572) 6 62

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