ZIP code · Keldron · South Dakota · United States
ZIP code 57634 — Keldron
ZIP code 57634 serves Keldron, South Dakota.
- Postal code
- 57634Single source Value from one source, not cross-checked.
- City
- Keldron
- County
- Corson FIPS 46031
- State
- South Dakota
- Country
- United States
- Coordinates
- 45.7528, -101.8843 — precision precise (locality)
View on OpenStreetMap - Population
- 155 (ZCTA, ACS 5-year)
- Population density
- 1 / sq mi
- Land area
- 201.5 sq mi (521.9 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $15,854
- Median age
- 14.6
- Households
- 41
- Housing units
- 50
- Median home value
- $93,800
- 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 57634 with another ZIP · ZIPs within 25 miles · distance from 57634
Map of ZIP code 57634
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 9°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 33 | 45 | 58 | 69 | 79 | 87 | 86 | 77 | 60 | 44 | 32 |
| Avg low °F | 9 | 12 | 21 | 32 | 43 | 53 | 59 | 57 | 47 | 35 | 22 | 12 |
| Precip in | 0.3 | 0.5 | 0.8 | 1.7 | 2.8 | 3.0 | 2.8 | 2.1 | 1.5 | 1.5 | 0.6 | 0.4 |
NOAA 1991–2020 climate normals from the nearest station: LEMMON (18.5 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