ZIP code · Walker · South Dakota · United States
ZIP code 57659 — Walker
ZIP code 57659 serves Walker, South Dakota.
- Postal code
- 57659Single source Value from one source, not cross-checked.
- City
- Walker
- County
- Corson FIPS 46031
- State
- South Dakota
- Country
- United States
- Coordinates
- 45.9103, -101.0904 — precision precise (locality)
View on OpenStreetMap - Population
- 19 (ZCTA, ACS 5-year)
- Population density
- 1 / sq mi
- Land area
- 13.5 sq mi (35 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $50,637
- Median age
- 38.4
- Households
- 7
- Housing units
- 9
- Congressional district
- SD At-large (119th Congress)
- USDA hardiness zone
- 4b (-25 to -20 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Denver (UTC−7 / UTC−6 DST)
- Area code
- 605 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 57659 with another ZIP · ZIPs within 25 miles · distance from 57659
Map of ZIP code 57659
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 7°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 26 | 30 | 43 | 57 | 69 | 79 | 86 | 85 | 75 | 59 | 42 | 30 |
| Avg low °F | 7 | 11 | 21 | 32 | 43 | 53 | 58 | 57 | 48 | 35 | 21 | 11 |
| Precip in | 0.4 | 0.5 | 0.7 | 1.4 | 2.4 | 3.5 | 2.7 | 1.9 | 1.4 | 1.5 | 0.5 | 0.4 |
NOAA 1991–2020 climate normals from the nearest station: MC INTOSH 6 SE (10.3 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page