ZIP code · Plankinton · South Dakota · United States
ZIP code 57368 — Plankinton
ZIP code 57368 serves Plankinton, South Dakota.
- Postal code
- 57368Single source Value from one source, not cross-checked.
- City
- Plankinton
- County
- Aurora FIPS 46003
- State
- South Dakota
- Country
- United States
- Coordinates
- 43.7373, -98.4694 — precision precise (locality)
View on OpenStreetMap - Population
- 1,090 (ZCTA, ACS 5-year)
- Population density
- 5 / sq mi
- Land area
- 232.2 sq mi (601.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $76,645
- Per-capita income
- $43,410
- Median age
- 39.3
- Households
- 419
- Housing units
- 499
- Median home value
- $143,300
- Median gross rent
- $877 / month
- Congressional district
- SD At-large (119th Congress)
- USDA hardiness zone
- 5a (-20 to -15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 605Telephone 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 57368 with another ZIP · ZIPs within 25 miles · distance from 57368
Map of ZIP code 57368
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 8°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 27 | 32 | 44 | 57 | 69 | 79 | 86 | 83 | 75 | 60 | 44 | 31 |
| Avg low °F | 8 | 12 | 22 | 33 | 46 | 57 | 62 | 60 | 50 | 36 | 23 | 13 |
| Precip in | 0.5 | 0.7 | 1.0 | 3.0 | 3.7 | 3.6 | 3.0 | 2.6 | 2.6 | 1.9 | 0.7 | 0.6 |
NOAA 1991–2020 climate normals from the nearest station: WHITE LAKE (10.7 mi) · NOAA NCEI
Places in ZIP 57368
- 3 schools
- 1 doctors & dentists
- 1 supermarkets
- 5 restaurants & cafés
- 5 bars & pubs
- 7 parks
- 3 playgrounds
- 1 libraries
- 1 post offices
- 2 places of worship
- 1 banks
- 4 gas stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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