ZIP code · Bismarck · North Dakota · United States
ZIP code 58502 — Bismarck
ZIP code 58502 serves Bismarck, North Dakota.
- Postal code
- 58502Single source Value from one source, not cross-checked.
- City
- Bismarck
- County
- Burleigh
- State
- North Dakota
- Country
- United States
- Coordinates
- 46.8887, -100.6819 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 4a (-30 to -25 °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
- 701Telephone 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 58502 with another ZIP · ZIPs within 25 miles · distance from 58502
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 4°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 22 | 27 | 40 | 54 | 66 | 76 | 82 | 80 | 71 | 56 | 40 | 27 |
| Avg low °F | 4 | 7 | 18 | 29 | 43 | 53 | 58 | 56 | 46 | 34 | 20 | 10 |
| Precip in | 0.5 | 0.5 | 0.9 | 1.6 | 2.6 | 3.3 | 3.2 | 2.7 | 1.9 | 1.6 | 0.7 | 0.7 |
NOAA 1991–2020 climate normals from the nearest station: BISMARCK 2.4 NNW (6.6 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