ZIP code · Sioux Falls · South Dakota · United States
ZIP code 57109 — Sioux Falls
ZIP code 57109 serves Sioux Falls, South Dakota.
- Postal code
- 57109Single source Value from one source, not cross-checked.
- City
- Sioux Falls
- County
- Minnehaha
- State
- South Dakota
- Country
- United States
- Coordinates
- 43.6746, -96.7913 — precision precise (locality)
View on OpenStreetMap - 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 57109 with another ZIP · ZIPs within 25 miles · distance from 57109
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 7°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 25 | 30 | 43 | 57 | 70 | 80 | 85 | 82 | 75 | 61 | 44 | 30 |
| Avg low °F | 7 | 11 | 23 | 36 | 49 | 59 | 64 | 61 | 52 | 38 | 24 | 13 |
| Precip in | 0.7 | 0.8 | 1.5 | 3.0 | 3.7 | 4.6 | 3.3 | 3.3 | 3.0 | 2.3 | 1.2 | 0.8 |
NOAA 1991–2020 climate normals from the nearest station: SIOUX FALLS WFO AP (6.7 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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page