ZIP code · Hill City · South Dakota · United States
ZIP code 57745 — Hill City
ZIP code 57745 serves Hill City, South Dakota.
- Postal code
- 57745Single source Value from one source, not cross-checked.
- City
- Hill City
- County
- Pennington FIPS 46103
- State
- South Dakota
- Country
- United States
- Coordinates
- 43.9377, -103.5782 — precision precise (locality)
View on OpenStreetMap - Population
- 1,784 (ZCTA, ACS 5-year)
- Population density
- 5 / sq mi
- Land area
- 385 sq mi (997.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $90,089
- Per-capita income
- $34,858
- Median age
- 45.5
- Households
- 644
- Housing units
- 941
- Median home value
- $323,500
- Median gross rent
- $1,016 / month
- 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 57745 with another ZIP · ZIPs within 25 miles · distance from 57745
Map of ZIP code 57745
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 10°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 41 | 49 | 56 | 65 | 75 | 83 | 82 | 74 | 60 | 49 | 41 |
| Avg low °F | 10 | 10 | 19 | 26 | 37 | 45 | 51 | 48 | 39 | 28 | 18 | 10 |
| Precip in | 0.4 | 0.7 | 1.1 | 2.5 | 4.2 | 3.4 | 3.5 | 2.3 | 1.5 | 1.6 | 0.6 | 0.5 |
NOAA 1991–2020 climate normals from the nearest station: HILL CITY (1.1 mi) · NOAA NCEI
Places in ZIP 57745
- 6 schools
- 1 doctors & dentists
- 1 supermarkets
- 7 restaurants & cafés
- 3 bars & pubs
- 8 parks
- 2 playgrounds
- 1 libraries
- 1 post offices
- 4 places of worship
- 2 banks
- 2 gas stations
- 2 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