ZIP code · Lodgepole · South Dakota · United States
ZIP code 57640 — Lodgepole
ZIP code 57640 serves Lodgepole, South Dakota.
- Postal code
- 57640Single source Value from one source, not cross-checked.
- City
- Lodgepole
- County
- Perkins FIPS 46105
- State
- South Dakota
- Country
- United States
- Coordinates
- 45.8232, -102.7599 — precision precise (locality)
View on OpenStreetMap - Population
- 50 (ZCTA, ACS 5-year)
- Population density
- 0 / sq mi
- Land area
- 255.1 sq mi (660.6 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $362,580
- Median age
- 48.7
- Households
- 29
- Housing units
- 37
- 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
- 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 57640 with another ZIP · ZIPs within 25 miles · distance from 57640
Map of ZIP code 57640
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 5°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 28 | 31 | 43 | 54 | 65 | 74 | 82 | 82 | 73 | 57 | 42 | 31 |
| Avg low °F | 5 | 7 | 16 | 25 | 36 | 47 | 52 | 49 | 40 | 27 | 14 | 7 |
| Precip in | 0.2 | 0.3 | 0.7 | 1.4 | 2.5 | 3.5 | 2.3 | 2.1 | 1.5 | 1.6 | 0.5 | 0.3 |
NOAA 1991–2020 climate normals from the nearest station: LODGEPOLE 5SW (5.5 mi) · NOAA NCEI
Places in ZIP 57640
- 1 schools
- 1 parks
- 2 places of worship
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